what is the wavelength of light falling on doubleslits separated byif the third-ordermaximum is at an angle of?

Answers

Answer 1

The wavelength of light falling on double slits separated by 0.2 mm, if the third-order maximum is at an angle of 3°, is 0.3835 mm.

Step 1: Calculate the angle of diffraction

The angle of diffraction is given by:

θ = arcsin (m λ / d)

Where m = order of the diffraction(3rd order in this case), λ = wavelength of light, and d = separation between the slits.

Step 2: Substitute the given values

θ = arcsin (3 λ / d)

θ = arcsin (3 λ / 0.2 cm)

Step 3: Solve for λ

Using the inverse sine function, λ = 0.2 cm / 3 * sin (θ)

Substituting θ = 18° , we get

λ = 0.2 cm / 3 * sin (18°)

λ = 0.067 cm = 67 mm

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Related Questions

Select the correct answer. Besides the force due to gravity or g, what else determines the period of a pendulum? a. Tension of the cord b. Mass of the pendulum bob c. Length of the cord d. Amplitude of the swing e. Only gravity is important when calculating the period of a pendulum.

Answers

Due to gravity  the period of a pendulum is Length of the cord. option C is the correct answer

The amount of time it takes the bob to complete one oscillation is known as the simple pendulum's time period.

The time period(T) of a simple pendulum is,

T = 2π√l/g

Time period :

Time depends on both the pendulum's effective length and the acceleration caused by gravity. The rope length and radius f bob are added to determine the effective length. The distance between the pendulum's point of suspension and the bob's center of gravity is its effective length. The length of the pendulum and, to a lesser extent, the amplitude have an impact on the basic pendulum's time period. That is the pendulum's swing's width. A pendulum's time span often refers to one whole cycle, or one full left swing and right swing.

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at the center of the neutral metal block, what is the direction of the electric field contributed by the charge in and on the metal block only?

Answers

The direction of electric field by the charge in and on the metal block will be along the direction line 5 as given in question.

How to determine electric field direction in a metal block?

The charge always remain on outer surface of metal and inside the metal block, the net electric field is zero. But due to dipole there is an electric field at the center of metal block i.e. at point R along direction line 1.

Now, to make make the net electric field zero at center, the electric field by the charge in and on the metal block must be equal in magnitude to that of electric field due to dipole at point R and in opposite direction to that of the net electric field at at R due to dipole.

The electric field by the charge in and on the metal block will be making 180° angle to the  electric field due to dipole at point R.

Hence the direction of electric field by the charge in and on the metal block will be along the direction line 5 as given in question.

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A ball of radius has a round hole of radius drilled through its center. Find the volume of the resulting solid.

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The volume of the resting solid = 11,226 [tex]units^{3}[/tex]

Firstly, if we talk about the spherical volume,

The formula for the spherical volume will be ⇒ ν =  [tex]\frac{4\pi r^{3} }{3}[/tex]

⇒ 'r' represents the radius of the sphere,

According to the question, a ball of radius 14 is given and another hole of radius 4 is drilled into it,

Volume (ν1) of the ball of radius r = 14,

ν1 = [tex]\frac{4\pi 14^{3} }{3}[/tex] ⇒ [tex]\frac{34,482}{3}[/tex]

= 11,494

Volume (ν2) of the hole drilled into the ball with radius r = 4,

ν2 = [tex]\frac{4\pi 4^{3} }{3}[/tex] ⇒ [tex]\frac{804}{3}[/tex]

= 268

Hence, the volume of the resting solid will be the difference between the ball (ν1) and the hole (ν2) drilled inside it,

= ν1 - ν2

= 11,494 - 268

= 11,226 [tex]units^{3}[/tex]

Therefore, the volume of the resting solid is = 11,226 [tex]units^{3}[/tex]

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A ball of radius 14 has a round hole of radius 4 drilled through its center.

Find the volume of the resulting solid.

41. one easy way to reduce heating (and cooling) costs is to add extra insulation in the attic of a house. suppose the house already had 15 cm of fiberglass insulation in the attic and in all the exterior surfaces. if you added an extra 8.0 cm of fiberglass to the attic, then by what percentage would the heating cost of the house drop? take the single story house to be of dimensions 10 m by 15 m by 3.0 m. ignore air infiltration and heat loss through windows and doors.

Answers

Adding more insulation to a home's attic is a simple approach to save heating bills. Consider that the attic and all outside surfaces of the home already have 15 cm of fiberglass insulation. The cost of heating would drop by 12%.

What are the four best approaches to lower air pollution?

Don't make as many car excursions as you normally would. Cut back on, or stop using, wood stoves and fireplaces. Be careful not to burn rubbish, leaves, or other items. Use electric lawn and garden tools instead of gas-powered ones.

Is fiberglass toxic to humans?

Touching fiberglass shouldn't have an adverse long-term health consequence. As a result of fiberglass exposure, eyes may become red and itchy. Inflammation of the throat and nose.

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how does the applied force to get something moving compare to the applied force to keep it moving at a constant velocity?

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The applied force MUST ALWAYS be higher than the frictional force in order for the object to begin moving or accelerate. The initial acceleration increases as the disparity grows. (Keep in mind that the square of a motion's resistance is its speed. Because of this, the top speed restriction for cars is set.

Some of the responses are incorrect because they don't comprehend what the term "force" means in the formula "Force = Mass x Acceleration." The force necessary to balance the resistance while at rest or while moving is NOT this force. To move the object, further force is required. Call the frictional force, which opposes this initial extra force, P, and changes with motion, F.

P will keep accelerating the object until the increase in friction stops it from moving at all. That does not imply that the object is not being subjected to additional force. The value of F has grown, but it is still present, and the object is moving with a steady speed.

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according to molecular orbital theory, the regions of the wave function with the highest probability of finding electrons are areas with _______.

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According to Molecular Orbital Theory, the regions of the wave function with the highest probability of finding electrons are areas with Constructive Interference.

Molecular Orbital Theory: F. Hund and R. S. Mulliken created the Molecular Orbital Theory (commonly abbreviated as MOT) at the start of the 20th century as a theory on chemical bonding to explain the structure and characteristics of many molecules. The valence-bond theory was unable to satisfactorily explain how some compounds, such as the bonds in resonance-stabilized molecules, have two or more equivalent bonds whose bond orders lay between that of a single bond and that of a double bond. Here, the valence-bond theory was outperformed by the molecular orbital theory (since the orbitals described by the MOT reflect the geometries of the molecules to which it is applied).

The following is a list of the main components of the molecular orbital theory.

The entire number of atomic orbitals provided by the bonding species will always equal the total number of molecular orbitals that are created.There are several different kinds of molecular orbitals, including bonding, anti-bonding, and non-bonding molecular orbitals. The energy of these will always be higher for anti-bonding molecule orbitals than for the parent orbitals, whereas the energy of bonding molecular orbitals will always be lower than the parent orbitals.As the orbital energy increases, the electrons are filled into molecular orbitals (from the orbital with the lowest energy to the orbital with the highest energy).Atomic orbital pairings that result in the production of molecular orbitals work best when the atomic orbitals involved have similar energies.

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Oxygen gas is collected at a pressure of 123 kpa in a container which has a volume of 10. 0 l. What temperature must be maintained on 0. 500 moles of this gas in order to maintain this pressure? express the temperature in degrees celsius.

Answers

The temperature required is  29315.6457C to maintain on 0.5 moles of the oxygen gas in order to maintain the given pressure.

We have pressure, volume, moles it means we can easily apply the ideal-gas equation which is given by the formula

=>P×V=n×R×T

where P is defined as the pressure,

V is defined as the volume of the gas

n is defined as the number of moles of the gas

R is defined as gas constant

and T is defined as the temperature of the gas.

Now,we have P=123kpa=123000pa,

V=10L,n=0.5,R=8.314m³Pa/K,T=?

So, on putting the values in above formula,we get

=>123000×10=0.5×8.314×T

=>T=(1230000) / 41.570

=>T=29588.6457K

But we got the temperature in kelvin and we need to report in Celsius,so we know that

=>K=C+273

=>29588.6457K=C+273

=>C=29588.6457-273

=>C=29315.6457C

Hence, required temperature is 29315.6457C

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what is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 520 nmnm ? the index of refraction of the film is 1.33, and there is air on both sides of the film.

Answers

The thinnest soap film that appears black when illuminated with light with a wavelength of 520 nm is about 195 nm.

A natural phenomenon known as "thin-film interference" occurs when light waves reflected by a thin film's upper and lower limits collide with one another, either enhancing or weakening the light that is reflected.

First, draw the diagram. From the diagram 1 is the first reflected ray and 2 is the second reflected ray. The red circle indicates the phase change. The first ray experience phase change but the second ray doesn't experience phase change.

Therefore, the thickness of the soap bubble is given by the thin-film interference formula,

[tex]\begin{aligned}2t& = m\lambda_{soap}\\t&=\frac{m\lambda_{soap}}{2}\\\lambda_{soap}&=\frac{2t}{m}\end{aligned}[/tex]

From Snell's law, we know that n₁λ₁=n₂λ₂, where λ is the wavelength and n is the index of refraction.

Then, for the soap film, [tex]n_{air}\lambda_{air}=n_{soap}\lambda_{soap}[/tex].

We know that n (air) is 1. From this,

[tex]\begin{aligned}\lambda_{soap}&=\frac{\lambda_{air}}{n_{soap}}\\\frac{2t}{m}&=\frac{\lambda_{air}}{n_{soap}}\\t&=\frac{m\lambda_{air}}{2n_{soap}}\end{aligned}[/tex]

Excluding the case of zero thickness, substitute m=1 for the first destructive interference.

Then, the smallest thickness is,

[tex]\begin{aligned}t&=\frac{\lambda_{air}}{2n_{soap}}\\&=\frac{520}{2\times1.33}\\&=\mathrm{195\;nm}\end{aligned}[/tex]

The answer is 195 nm.

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If the efficiency of a carnot engine were to be 100%, the heat sink would have to be?

Answers

Is for Carnot engine to have an efficiency of 1, i.e.  100 %, either T2 (temperature of the sink) should be zero or T1 (temperature of the source) should be infinite.

Can Carnot engines operate at full capacity?Why?

There is no perfect source since it is impossible to achieve 100% efficiency because a portion of the heat from the source must be used to overcome resistance from the environment and other forces.

Why is it impossible to create an engine with 100percentage efficiency in practice?

The efficiency of a steam generator cannot be 100% since it is impossible to reach absolute zero or infinite temperatures in real life.

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a crane is lifting a 2000 kgload with a cable whose breaking strength is 22;000 n. what is the maximum upward acceleration that the load can be given?

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A crane is lifting a 2000 kgload with a cable whose breaking strength is 22,000 n.  1.2 m/sec² is the maximum upward acceleration that the load can be given.

What is Newton's law?

The motion of an item is related to the forces operating on it by Newton's equations of motion. According to the first law, until a force strikes on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction pressures upon one another.

Given that,

a crane is lifting a 2000 kg load

breaking strength is 22,000 N

According to Newton's law:

F - mg = ma

Now, acceleration, a = (F- mg)/m

or, a = [22,000 - (2000 × 9.8)] / 2000

or, a = 1.2 m/sec².

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a stretched string with fixed two ends is observed to vibrate in three equal segments when driven by a 108-hz oscillator. if the tension in the 2.00-m string is 320 n, what is the mass of the wire?

Answers

The tension in the 2.00-m string is 320 n, Mass of the wire is 30.9 grams

Frequency of the wave = ν = v/λ = 1/λ [tex]\sqrt{T/P}[/tex]

Where p = m/l

ν = 3/2l [tex]\sqrt{Tl/m}[/tex]

mass of the wire = gt /4l[tex]v^{2}[/tex] = 0.0309 kg

Hence mass of the wire m = 30.9 grams

Tension is defined as the pulling force transmitted axially by means of a string, rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object; tension may alternatively be defined as the action-reaction pair of forces operating at each end of those elements. Compression's opposite, tension, might exist.

When molecules or atoms are forced apart at the atomic level and accumulate potential energy while a restoring force is still present, the restoring force may produce what is also known as tension. Under such stress, each end of a string or rod might pull on the thing to which it is linked, releasing the tension and allowing the string or rod to return to its relaxed length.

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A force of 10kN is accelerating an object at a rate of 8.19 m/s^2. If the mass experiences a factor of change of 1.8, and the force remains constant, what will be the resultant acceleration?

Answers

The resultant acceleration of the object is 4.55 m/s².

What is the mass of the object?

The mass of the object is calculated by applying Newton's second law of motion as shown below.

F = ma

m = F / a

where;

m is the mass of the objecta is the acceleration of the objectF is the applied force on the object

m = (10, 000 N ) / (8.19 m/s²)

m = 1,221 kg

when the mass changes by a factor of 1.8, the new mass becomes;

m' = 1.8 x 1,221 kg

m' = 2,197.8 kg

The resultant acceleration becomes;

a = F / m

a = (10, 000 N ) / (2, 197.8 kg)

a = 4.55 m/s²

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One strategy in a snowball fight is to throw
a snowball at a high angle over level ground.
While your opponent is watching this first
snowball, you throw a second one at a low
angle timed to arrive before or at the same
time as the first one. Assume both snowballs
are thrown with a speed of 33.3 m/s. The first
one is thrown at an angle of 55◦ with respect
to the horizontal.
At what angle should the second snowball
be thrown to arrive at the same point as the
first?

Answers

The angle the second snowball should be thrown to arrive at the same point as the first is determined as 35 degrees.

What is the range of the projectile?

The range of projectile is the maximum horizontal displacement of the projectile along the horizontal direction.

Mathematically, the maximum range of a projectile is given as;

R = u² sin (2θ) / g

where;

u is the speed of the snowballg is acceleration due to gravityθ is the angle of projection

When the angle of projection = 55⁰

R = (33.3² x sin (2 x 55) ) / (9.8)

R = 106.33 m

When the angle of projection = 90⁰ - 55⁰ = 35⁰

R = (33.3² x sin (2 x 35) ) / (9.8)

R = 106.33 m

Thus, when the second snowball is projected at an angle of 35⁰ it will attain the same horizontal displacement as the first snowball.

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During a classroom lab activity, students built each of the circuits shown below and measured the current and resistance in each circuit. Each circuit contains a 1. 5-volt battery and each bulb has a resistance of 50 Ω.When the switch is closed, in which circuit would resistance be the highest and current be lowest?

Answers

The circuit having a parallel combination of resistance will have more current and series combination have less current.

In today's high-tech world, electrical engineers are faced with the design and analysis of an ever-increasing variety of circuits and systems. However, all of these systems are based on his DC circuit behavior at a basic level. In fact, the ability to analyze and simplify such circuits is critical to understanding and designing more complex circuits.

In addition, measurement of DC circuit quantity i. H. Voltage, current, resistance, the most basic and basic measurements an electrician can perform. In this experiment, students learn the use and limitations of modern digital multimeters and experimentally verify the validity of Thevenin's Theorem, his of key concepts in circuit theory.

It is often desirable to measure electricity without using an electricity meter. This situation is most common when examining current waveforms on the oscilloscope. The problem that arises here is that the oscilloscope cannot measure the current directly (this will become apparent in further experiments), so we have to devise a way to measure the current indirectly.

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a small insect smashes into the windshield of your car while you are zooming down the interstate. which experiences a larger acceleration; the bug or the car?

Answers

The mass of the body has a direct relationship to the force. The force exerted by small insects will be less because they weigh so little. As a result, the car exerts more force.

Describe force.

A body is changed from its state of rest or motion by the application of force, which is an external agent. Magnetic, frictional, nuclear, gravitational, and other types of forces are among them.

Force in physics is calculated as the sum of mass and acceleration.

F = ma is the formula for force. The force generated by a heavy body is therefore greater than the force generated by a light body.

In contrast to the insect, which is much smaller and lighter than a car, the car is much larger and weighs much more. In light of this, the massive car exerts a greater force than the tiny insect.

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Mindfulness is important when it comes to your personal fitness. What are some other ways that you suspect mindfulness could be helpful in life (aside from personal fitness)? please explain your answers.

Answers

Mindfulness is the basic human ability to be fully present, aware of where we are and what we’re doing, and not overly reactive or overwhelmed by what’s going on around us.

When we meditate it doesn’t help to fixate on the benefits, but rather to just do the practice, and yet there are benefits or no one would do it.

When we’re mindful, we reduce stress, enhance performance, gain insight and awareness through observing our own mind, and increase our attention to others’ well-being.

Mindfulness meditation gives us a time in our lives when we can suspend judgment and unleash our natural curiosity about the workings of the mind, approaching our experience with warmth and kindness—to ourselves and others.

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Answer:

Ways to suspect mindfulness is eating healthy and yoga.

Explanation:

This is because eating healthy can make you increase stamina and happiness. On the other hand, Yoga improves strength, balance and flexibility.

2) a rope of mass m and length ` hangs from the ceiling. (i) what is the wave speed on the rope a distance y above the lower end? (ii) how long does it take for a wave to travel up the rope?

Answers

When a rope with mass m and length 'hangs from the ceiling, the wave speed on the rope is V = (gy)1/2 and 2(L/g)1/2, which is the speed of the wave to go up the rope.

Wave speed is a property of waves that can refer to the absolute value of the phase velocity, the speed at which a wave phase propagates at a particular frequency group velocity, the propagation velocity for the envelope of wave groups, and frequently the velocity of wave energy, which is different from the phase velocity for dispersive waves. When the string is yy distance from the bottom, the tension there is mg, where m is the mass of the component below y. Mass per unit length is what is meant by linear density.

V =(gy)^1/2

2(L/g)^1/2 is the speed of the a wave to travel up the rope.

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A mass of sunken lead is resting against the bottom in a glass of water. You take this lead, put it in a small boat of negligible mass, and float the boat in the water. Which of the following statements are true? (There may be more than one correct choice.)
A. The sunken lead displaces a volume of water equal to the lead's own volume.
B. The floating lead displaces a volume of water equal to the lead's own volume.
C. The sunken lead displaces a volume of water whose weight equals the lead's weight.
D. The floating lead displaces a volume of water whose weight equals the lead's weight.

Answers

C. The sunken lead displaces a volume of water whose weight equals the lead's weight.

How are masses determined?

Scales and balances Digital science balances & beam balances, like a triple beam balance, are examples of several sorts of balances.The metric system uses either grams and kilograms as standard unit of measure of mass.To determine mass at home, you normally use a contemporary digital or spring scale.

What in science is a mass?

A amount much matter inside a particle or object is represented by the dimensionless quantity mass (symbolized m).The kilogram is the International System's (SI) preferred unit of mass (kg).

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one cubic centimeter of oak (750 kg/m3) and 1 cubic centimeter of aluminum (2700 kg/m3) are dropped into a pool. which has the largest buoyant force on it?

Answers

Aluminum has the largest buoyant force on it.

How do buoyant forces work?

The buoyant force is an upward force that an object will experience whether it is fully or partially submerged in a fluid. This upward thrust also goes by the name of upthrust. Because of the buoyant force, an object that is partially or completely submerged in a fluid seems to weigh less or to be lighter.

The fluid is pushing up on the submerged object with this force. Examples of buoyant force include a fish hovering in the middle of the ocean, a ship floating in the middle of the sea, and an anchor that sinks when dropped into the water.

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which method of assessing body fat percentage involves an electric current flowing through the body>

Answers

Bioelectric impedance analysis (BIA), another technique, involves taking measurements while an electric current is passing through the body's water and fat tissues [14, 15, 16, 17].

Bioelectric impedance analysis, or BIA, is a common method of operation for these kinds of scales. By passing a tiny electrical current through the body, BIA calculates body composition [5]. The scale then measures the body's resistance to the current and determines what proportion of the body is made up of fat using that measurement. A weak electrical current is passed through the body using the bioelectrical impedance (BI) technique. Because it contains fewer water and electrolytes than lean muscle, body fat slows the flow of electricity. Considering that hydration is normal, the measurement of body fat is precise.

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how are rotation curves of spiral galaxies determined beyond radii where starlight can be detected?

Answers

Using observations of the atomic hydrogen 21 cm line rotation curves of spiral galaxies determined beyond radii where starlight can be detected.

What is rotation curves of spiral galaxies?The main method for ascertaining the mass distribution in spiral galaxies is to analyze the rotation curves of spiral galaxies. They offer vital knowledge for comprehending spiral galaxies' dynamics, evolution, and creation.The function vcirc(R) for a galaxy represents the rotation curve. Measurement of vcirc(R) over a range of R will yield highly significant data on the gravitational potential. This in turn provides fundamental details regarding the galaxy's mass distribution, including dark matter.In fact, by analyzing a spiral galaxy's rotation curves, we may determine not only how much mass the galaxy has overall but also how this mass is distributed inside the galaxy.

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a 750 g aluminum pan is removed from the stove and plunged into a sink filled with 10 kg of water at 200c. the temperature quickly rises to 240c. what was the initial temperature of the pan

Answers

A 750 g aluminum pan is removed from the stove and plunged into a sink filled with 10 kg of water at 200c. The temperature quickly rises to 240c. 100 c the initial temperature of the pan.

The physical concept of temperature indicates in numerical form how hot or cold something is. Temperature is measured with a thermometer. Different temperature scales, which traditionally established various reference points and thermometric materials, are used to calibrate thermometers. The most widely used scales are the Kelvin scale (K), which is mostly used in science, the Fahrenheit scale (°F), and the Celsius scale, also referred to as centigrade and denoted by the unit symbol °C. The kelvin is one of the seven base units in the International System of Units (SI). On the thermodynamic temperature scale, absolute zero, also known as 0 kelvin, or 273.15 °C, is the lowest temperature. The third law of thermodynamics recognizes that it can only be very nearly attained experimentally and that it cannot actually be reached. It would be challenging for a body to produce heat at such temperature. Temperature is a crucial factor in all branches of natural science, including physics, chemistry, Earth science, astronomy, biology, ecology, material science, metallurgy, mechanical engineering, geography, and the majority of aspects of daily living. These fields cover the majority of the scientific disciplines, including biology, medicine, and ecology.

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Coherent light with wavelength 400 nm passes through two very narrow slits that are separated by 0.200 mm, and the interference pattern is observed on a screen 4.00 m from the slits. a. What is the width (in mm) of the central interference maximum? b. What is the width of the first-order bright fringe?

Answers

a. The width (in mm) of the central interference maximum is 8 mm

b. The width of the first-order bright fringe is 8mm

we are given the information that Coherent light with wavelength 400 nm passes through two very narrow slits that are separated by 0.200 mm, and the interference pattern is observed on a screen 4.00 m from the slits. Since we know that:

Sinθ≈θ=(m+1/2)λ/d, where d is the distance,  λ is the wavelength and  the vertical distance y(m) from the central maximum to the mth minima can be defined as

tanθ≈θ=y(m)/D

solving the above equation we get :

y(m)=(m+12)λD/dy(m), for the width of the central maximum for the distance between the m=0 and m=-1 minima:

y(0)−y(1)=(1/2)λD/d−(−1/2)λD/d

=λD/d

=(400×10−9m)(4m)/2×10−4m = 0.008m=8mm

Since y(0)−y(−1) is  is independent of m.  So,  the distance between adjacent minima is  always the same and the width of the first-order bright fringe  will be :

y(1)−y(0)=8mm

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in a dental office, the person giving a dental x-ray examination leaves the room while the x-ray source is active. dental office workers do not, however, take similar precautions against the bright lights of the exam room. explain this difference.

Answers

The difference between a dental X-ray examination and the bright lights of the exam room lies in the type of radiation emitted. During a dental X-ray examination, the X-ray source emits ionizing radiation, which can be harmful if a person is exposed to it for too long.

This is why the person giving the X-ray examination will leave the room while the X-ray source is active. The bright lights of the exam room, on the other hand, emit non-ionizing radiation, which is not as harmful and can be safely exposed to without any special precautions.

The type of radiation emitted is an important factor when considering safety precautions. Ionizing radiation can be dangerous, so it is important to take the necessary steps to protect oneself from it. Non-ionizing radiation, on the other hand, is not as dangerous and can be safely exposed to without taking any special precautions. This is why the person giving the X-ray examination will leave the room while the X-ray source is active, but dental office workers do not take similar precautions against the bright lights of the exam room.

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suppose that your microwave oven operates at a frequency of 2.48 ghz. find the corresponding wavelength of the electromagnetic waves in the oven.

Answers

The wavelength of the electromagnetic waves with this frequency would be 12 cm.

The length over which a periodic wave repeats in space is known as its wavelength. It is a characteristic of all spatial wave patterns, including standing waves and moving waves. The distance between two adjacent crests, troughs, or zero crossings on the wave that correspond to successively in the same phase.

In other words, the wavelength is the distance, notably between electromagnetic or sound wave points, between the crests of a wave.

The relation between frequency and wavelength is given as

v . d = c

where

v =  frequency, d= wavelength, c = speed of light in vacuum

here in this case v = 2.48 ghz which is equal to

v = 2.48 ghz = [tex]2.48 * 10^{9}[/tex] hz. = [tex]2.48 * 10^{9}[/tex]  [tex]s^{-1}[/tex]

substituting the values in the relation

d = c / v

We get,

d = [tex]3* 10 ^{8}[/tex] / [tex]2.48 * 10^{9}[/tex] = 0.120 m = 12 cm

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When you view a distant rainbow, each single water drop contributes to the bow
A. a single color
B. either low, middle, or high-frequency colors in most cases
C. all the colors of the rainbow

Answers

When I view a distant rainbow, each single water drop contributes to the bow d)All of the above cases. So, correct option is d.

A rainbow is a meteorological peculiarity that is brought about by reflection, refraction and scattering of light in water beads bringing about a range of light showing up overhead. It appears as a kaleidoscopic round bend. Rainbows brought about by daylight generally show up in the part of sky straightforwardly inverse the Sun.

Rainbows can be round trips. In any case, the spectator ordinarily sees just a curve shaped by enlightened drops over the ground,[1] and fixated on a line from the Sun to the spectator's eye.

Inside the essential rainbow, the curve actually shows red on the external part and violet on the inward side. This rainbow is brought about by light being refracted while entering a bead of water, then pondered inside the rear of the drop and refracted again while leaving it.

Hence, correct option is d.

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(Complete question) is:

When you view a distant rainbow, each single water drop contributes to the bow

A. a single color

B. either low, middle, or high-frequency colors in most cases

C. all the colors of the rainbow

D.all of the above cases

An object rolls without slipping onto a surface where the coefficient of friction between object and surface is twice as great as that needed to prevent slipping.
Describe the subsequent motion:-
A) The object begins to slip, and the actual force of static friction doesn't change.
B) The object continues to roll without slipping, and the actual force of static friction doesn't change.
C) The object continues to roll without slipping, and the actual force of static friction increases.
D) The object begins to slip, and the actual force of static friction increases.

Answers

The correct option B) The object continues to roll without slipping, and the actual force of static friction doesn't change.

When an object experiences static friction, its frictional force resists any applied force, causing the object to stay at rest until the static frictional force is removed. The frictional force opposes an object's motion in kinetic friction.

In contrast, static friction occurs when two surfaces are at rest with regard to one another. Static friction ranges in value from zero to the minimum force required to initiate motion. The force necessary to initiate motion or to remove static friction is always greater than that needed to keep the motion going or to remove kinetic friction.

When an object and surface have twice as much friction as is required to prevent slippage, the object rolls onto the surface without slipping.

Thus, the ensuing motion is that the object keeps rolling without slipping, and the static friction's actual force remains constant.

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What is the frequency of a wave that has a speed of 0.4 m/s and a wavelength of 0.02 meter?

Answers

The frequency of a wave is  20Hertz if its speed is 0.4m/sec and wavelength is 0.02meter.

For electromagnetic wave ,we know an expression

c=ν × λ

where c is the defined as the speed of wave  in any medium,

ν is  defined as the frequency of the wave and

λ is defined as the  wavelength of the wave.

Frequency is the amount of occasions of a reiterating event for each unit of time. It is similarly once in a while suggested as common repeat for clarity, and is undeniable from dashing repeat. Frequency is assessed in Hertz (Hz) which is comparable to one event each second. The period is the time span between events, so the period is the relating of the recurrence.

Now, according to given formula we get

=>0.4 = v×0.02

=>v=0.4/0.02

=>v=40/2sec

=>v=20/sec or

=>v=20Hertz.

Hence, frequency of a wave is 20Hertz.

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a rider and her bicycle weigh 60.24 kg. what is the kinetic energy in kj of the bike and rider while traveling at a speed of 25.1 km/h?

Answers

The kinetic energy of the bike and rider while traveling at a speed of 25.1 km/h is  18,975 joule

 Kinetic energy K = (1/2)mv²  = 0.5 x 60.24x(25.1)² =18,975joule

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us to do work. After work has been done, energy has been transferred to the object, and the object will be moving with a new constant speed.Kinetic energy is energy possessed by an object in motion. The earth revolving around the sun, you walking down the street, and molecules moving in space all have kinetic energy. Kinetic energy is directly proportional to the mass of the object and to the square of its velocity

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The deepest point in any ocean is in the mariana trench, which is about 11 km deep, in the pacific. The pressure at this depth is huge, about 1. 13 108 n/m2. (take the bulk modulus of seawater to be 2. 34 109 n/m2).

Answers

The change in volume when it is taken to depth is -0.053m³.

Given in the question,

Pressure at depth of 11 km = 1.13 × 10⁸ N/m²

The volume of seawater V = 1 m³

Pressure at the surface of seawater = 1.01 × 10⁵ N/m²

ΔP = 1.13×10⁸ - 1.01 × 10⁵ N/m²

Bulk modulus, B = -V dP/dV = -V(ΔP/ΔV)

B = -V (1.13 × 10⁸ - 1.01 × 10⁵)/ΔV N/m²

2.1 × 10⁹ N/m² = -1 (1.13 × 18⁸ - 1.01 × 10⁵) N/m² / ΔV

ΔV = (-1) (1.13 × 10⁸ - 1.01 × 10⁵)/2.1×10⁹ = -0.053m³

Therefore, the change in volume when it is taken to depth is -0.053m³.

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Complete question:

The deepest point in the ocean is in the Mariana Trench, about 11 km deep, about 1.13 × 10³ N/m². Calculate the change in volume of 1.00m² of seawater carried from the surface to this deepest point.

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