Exam 24: Wave Optics: Part A

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Two plane mirrors make an angle of 50° with one another.A ray of light parallel to mirror #1 reflects off mirror #2 and then strikes mirror #1.What is the angle of incidence the ray makes with mirror #1?

(Multiple Choice)

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(67)

Question 41

A corner cube is formed by three plane mirrors perpendicular to one another resulting in a retroreflector.What is the angle between the directions of an incoming ray of light and of the corresponding outgoing ray of light for this device?

(Multiple Choice)

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(86)

Question 42

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 40.0° with the normal,what is the incident angle at the oil-to-water surface?

(Multiple Choice)

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Question 43

Monochromatic light hits a piece of glass.Assuming the frequency remains constant,what happens to the wavelength in the glass as the index of refraction decreases?

(Multiple Choice)

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Question 44

Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)at an angle of 30°.What is the angle of reflection from the surface?

(Multiple Choice)

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(85)

Question 45

A mirror lies flat on a table.A beam of light strikes the mirror with an angle of incidence or 15°,the reflected ray being to the right of the incident beam.The right edge of the mirror is then lifted so that the mirror now makes a 5° angle with the horizontal.What is the resulting angle between the incident beam and the reflected beam?

(Multiple Choice)

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Question 46

A fish is 2.1 m beneath the surface of a still pond of water.At what maximum angle can the fish look toward the surface (measured with respect to the normal to the surface)in order to see a fisherman sitting on a distant bank? (for water,n = 1.333)

(Multiple Choice)

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(79)

Question 47

An object is placed at a distance of 40 cm from a thin,convex lens along its axis.The lens has a focal length of 10 cm.What are the values,respectively,of the image distance and magnification?

(Multiple Choice)

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Question 48

When the reflection of an object is seen in a plane mirror,the image is:

(Multiple Choice)

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Question 49

A projector lens is needed to form an image on a screen 20 times the size of its corresponding object.The screen is located 8.0 m from the lens.What is the required focal length of the lens?

(Multiple Choice)

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(80)

Question 50

Light in air enters a diamond (n = 2.42)at an angle of incidence of 60.0°.What is the angle of refraction inside the diamond?

(Multiple Choice)

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(84)

Question 51

A ray of light travels from a glass-to-liquid interface at an angle of 41.8°.Indices of refraction for the glass and liquid are,respectively,1.52 and 1.63.What is the angle of refraction for the ray moving through the liquid?

(Multiple Choice)

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(72)

Question 52

If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror,the required length of the mirror:

(Multiple Choice)

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(79)

Question 53

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.40).If the speed of the beam before it enters the plastic is 3.00 × 10⁸ m/s,what is its speed inside the block?

(Multiple Choice)

4.9/5

(74)

Question 54

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 40.0° with the normal,what is the angle of the refracted ray in the water?

(Multiple Choice)

4.9/5

(90)

Question 55

A monochromatic beam of light in air has a wavelength of 632 nm.It passes through glass (n = 1.52)and then through carbon disulfide (n = 1.63).What is its wavelength in the carbon disulfide?

(Multiple Choice)

4.7/5

(60)

Question 56

Two parallel beams of light in air strike the surface of a transparent material and the refracted beam 1 is closer to the normal than beam 2.Which beam is traveling at higher speed in the material,and which beam has the higher index of refraction in the material?

(Multiple Choice)

4.8/5

(78)

Question 57

If the wavelength of a monochromatic source is 600 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.00 × 10⁸ m/s? (c = 3.00 × 10⁸ m/s)

(Multiple Choice)

4.9/5

(81)

Question 58

A slab of plastic rests on a slab of glass.A ray of light in the plastic crosses the interface between the plastic and the glass with the result that the ray bends toward the normal.What must be true about the indices of refraction in these materials?

(Multiple Choice)

5.0/5

(75)

Question 59

An object is placed at a distance of 50 cm from a thin lens along the axis.If a real image forms at a distance of 50 cm from the lens,on the opposite side from the object,what is the focal length of the lens?

(Multiple Choice)

4.8/5

(77)

Question 60

Showing 41 - 60 of 71

Exam 24: Wave Optics: Part A

Two plane mirrors make an angle of 50° with one another.A ray of light parallel to mirror #1 reflects off mirror #2 and then strikes mirror #1.What is the angle of incidence the ray makes with mirror #1?

A corner cube is formed by three plane mirrors perpendicular to one another resulting in a retroreflector.What is the angle between the directions of an incoming ray of light and of the corresponding outgoing ray of light for this device?

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 40.0° with the normal,what is the incident angle at the oil-to-water surface?

Monochromatic light hits a piece of glass.Assuming the frequency remains constant,what happens to the wavelength in the glass as the index of refraction decreases?

Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)at an angle of 30°.What is the angle of reflection from the surface?

A fish is 2.1 m beneath the surface of a still pond of water.At what maximum angle can the fish look toward the surface (measured with respect to the normal to the surface)in order to see a fisherman sitting on a distant bank? (for water,n = 1.333)

An object is placed at a distance of 40 cm from a thin,convex lens along its axis.The lens has a focal length of 10 cm.What are the values,respectively,of the image distance and magnification?

When the reflection of an object is seen in a plane mirror,the image is:

A projector lens is needed to form an image on a screen 20 times the size of its corresponding object.The screen is located 8.0 m from the lens.What is the required focal length of the lens?

Light in air enters a diamond (n = 2.42)at an angle of incidence of 60.0°.What is the angle of refraction inside the diamond?

A ray of light travels from a glass-to-liquid interface at an angle of 41.8°.Indices of refraction for the glass and liquid are,respectively,1.52 and 1.63.What is the angle of refraction for the ray moving through the liquid?

If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror,the required length of the mirror:

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.40).If the speed of the beam before it enters the plastic is 3.00 × 108 m/s,what is its speed inside the block?

An oil film floats on a water surface.The indices of refraction for water and oil,respectively,are 1.333 and 1.466.If a ray of light is incident on the air-to-oil surface at an angle of 40.0° with the normal,what is the angle of the refracted ray in the water?

A monochromatic beam of light in air has a wavelength of 632 nm.It passes through glass (n = 1.52)and then through carbon disulfide (n = 1.63).What is its wavelength in the carbon disulfide?

Two parallel beams of light in air strike the surface of a transparent material and the refracted beam 1 is closer to the normal than beam 2.Which beam is traveling at higher speed in the material,and which beam has the higher index of refraction in the material?

If the wavelength of a monochromatic source is 600 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.00 × 108 m/s? (c = 3.00 × 108 m/s)

A slab of plastic rests on a slab of glass.A ray of light in the plastic crosses the interface between the plastic and the glass with the result that the ray bends toward the normal.What must be true about the indices of refraction in these materials?

An object is placed at a distance of 50 cm from a thin lens along the axis.If a real image forms at a distance of 50 cm from the lens,on the opposite side from the object,what is the focal length of the lens?

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.40).If the speed of the beam before it enters the plastic is 3.00 × 10⁸ m/s,what is its speed inside the block?

If the wavelength of a monochromatic source is 600 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.00 × 10⁸ m/s? (c = 3.00 × 10⁸ m/s)