Question 1

According to present theories of light,in some experiments light seems to be:

Accepted Answer

A) composed of particles which can neither be created nor destroyed. 
B) a particle whose quantized energy depends on its velocity. 
C) a wave that moves from one place to another if there is material to vibrate. 
D) none of the above. 
A) composed of particles which can neither be created nor destroyed. 
B) a particle whose quantized energy depends on its velocity. 
C) a wave that moves from one place to another if there is material to vibrate. 
D) none of the above. D

Question 2

One phenomenon that demonstrates the particle nature of light is:

Accepted Answer

A) the photoelectric effect. 
B) diffraction effects. 
C) interference effects. 
D) the prediction by Maxwell's electromagnetic theory. 
A) the photoelectric effect. 
B) diffraction effects. 
C) interference effects. 
D) the prediction by Maxwell's electromagnetic theory. A

Question 3

Three slabs of different types of glass of uniform thickness are in contact with one another.The materials have indices of refraction   ,   ,and   where   and   .A beam of light starting in air is incident on the surface of material 1 at an angle of incidence of 35 $\degree$.The beam continues through material 1,material 2,and material 3,finally emerging into the air again.In which of materials 1,2,or 3,or air (when the beam emerges back into the air)does the beam experience the largest angle of refraction?

Accepted Answer

A) material 1 
B) material 2 
C) material 3 
D) air 
A) material 1 
B) material 2 
C) material 3 
D) air D

Question 4

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 37.0 $\degree$ with the normal,what is the angle of the refracted ray in the water?

Accepted Answer

A) 18.1 $\degree$ 
B) 24.2 $\degree$ 
C) 26.8 $\degree$ 
D) 37.0 $\degree$ 
A) 18.1 $\degree$ 
B) 24.2 $\degree$ 
C) 26.8 $\degree$ 
D) 37.0 $\degree$

Question 5

A beam of light in air is incident at an angle of 30 $\degree$ to the surface of a rectangular block of clear plastic (n = 1.46).The light beam first passes through the block and re-emerges from the opposite side into air at what angle to the normal to that surface?

Accepted Answer

A) 42 $\degree$ 
B) 23 $\degree$ 
C) 30 $\degree$ 
D) 59 $\degree$ 
A) 42 $\degree$ 
B) 23 $\degree$ 
C) 30 $\degree$ 
D) 59 $\degree$

Question 6

A container of flint glass (n = 1.66)holds a small quantity of benzene (n = 1.501).What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

Accepted Answer

A) 89.5 $\degree$ 
B) 64.7 $\degree$ 
C) 41.1 $\degree$ 
D) 37.0 $\degree$ 
A) 89.5 $\degree$ 
B) 64.7 $\degree$ 
C) 41.1 $\degree$ 
D) 37.0 $\degree$

Question 7

The lowest possible value for the index of refraction is:

Accepted Answer

A) 0. 
B) 1. 
C) 0.707. 
D) 3-1/2. 
A) 0. 
B) 1. 
C) 0.707. 
D) 3-1/2.

Question 8

An underwater scuba diver sees the sun at an apparent angle of 30.0 $\degree$ from the vertical.How far is the sun above the horizon? (nwater = 1.333)

Accepted Answer

A) 22.0 $\degree$ 
B) 41.8 $\degree$ 
C) 48.2 $\degree$ 
D) 68.0 $\degree$ 
A) 22.0 $\degree$ 
B) 41.8 $\degree$ 
C) 48.2 $\degree$ 
D) 68.0 $\degree$

Question 9

As the angle of incidence is increased for a ray incident on a reflecting surface,the angle between the incident and reflected rays ultimately approaches what value?

Accepted Answer

A) zero 
B) 45 $\degree$ 
C) 90 $\degree$ 
D) 180 $\degree$ 
A) zero 
B) 45 $\degree$ 
C) 90 $\degree$ 
D) 180 $\degree$

Question 10

A light ray incident on the interface between air and glass can undergo total internal reflection:

Accepted Answer

A) only in the glass. 
B) only in the air. 
C) in either the glass or the air. 
D) in the air only if the index of refraction of the glass is greater than the   . 
A) only in the glass. 
B) only in the air. 
C) in either the glass or the air. 
D) in the air only if the index of refraction of the glass is greater than the   .

Question 11

Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle?

Accepted Answer

A) total reflection 
B) total transmission 
C) partial reflection,partial transmission 
D) partial reflection,total transmission 
A) total reflection 
B) total transmission 
C) partial reflection,partial transmission 
D) partial reflection,total transmission

Question 12

Who formulated the theory explaining the photoelectric effect?

Accepted Answer

A) Hertz 
B) Maxwell 
C) Newton 
D) Einstein 
A) Hertz 
B) Maxwell 
C) Newton 
D) Einstein

Question 13

Fiber optics has to do with:

Accepted Answer

A) the color of fabrics. 
B) light having fiber characteristics as well as wave and particle characteristics. 
C) string theory. 
D) none of the above. 
A) the color of fabrics. 
B) light having fiber characteristics as well as wave and particle characteristics. 
C) string theory. 
D) none of the above.

Question 14

Of the values listed below,which is the greatest possible value for the index of refraction?

Accepted Answer

A) 1.5 
B)    
C) 2.0 
D) 2.4 
A) 1.5 
B)    
C) 2.0 
D) 2.4

Question 15

Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)at an angle of 60 $\degree$.What is the angle of reflection from the surface?

Accepted Answer

A) 15 $\degree$ 
B) 34 $\degree$ 
C) 60 $\degree$ 
D) 75 $\degree$ 
A) 15 $\degree$ 
B) 34 $\degree$ 
C) 60 $\degree$ 
D) 75 $\degree$

Question 16

A line representing a wave front for a wave should be drawn:

Accepted Answer

A) from the source to the receiver. 
B) from one crest to the preceding crest. 
C) along one of the crests of the wave. 
D) in the direction the wave is moving. 
A) from the source to the receiver. 
B) from one crest to the preceding crest. 
C) along one of the crests of the wave. 
D) in the direction the wave is moving.

Question 17

When light from air hits a smooth piece of glass (n = 1.5)with the ray perpendicular to the glass surface,which of the following will occur?

Accepted Answer

A) reflection and transmission with q2 = 0 $\degree$ 
B) refraction with q2 = 41.8 $\degree$ 
C) interference 
D) All of the above will occur. 
A) reflection and transmission with q2 = 0 $\degree$ 
B) refraction with q2 = 41.8 $\degree$ 
C) interference 
D) All of the above will occur.

Question 18

What is the maximum possible arc that can be subtended by a rainbow? (Consider all possible viewing geometries).

Accepted Answer

A) 90 $\degree$ 
B) 180 $\degree$ 
C) 270 $\degree$ 
D) 360 $\degree$ 
A) 90 $\degree$ 
B) 180 $\degree$ 
C) 270 $\degree$ 
D) 360 $\degree$

Question 19

Water has an index of refraction of 1.333.What is the speed of light through it? (c = 3.00 x 108 m/s)

Accepted Answer

A) 4.00 x 108 m/s 
B) 2.25 x 108 m/s 
C) 4.46 x 108 m/s 
D) 1.46 x 108 m/s 
A) 4.00 x 108 m/s 
B) 2.25 x 108 m/s 
C) 4.46 x 108 m/s 
D) 1.46 x 108 m/s

Question 20

A ray of light is incident on the mid-point of a glass prism surface at an angle of 20 $\degree$with the normal.For the glass,n = 1.60,and the prism apex angle is 35 $\degree$.What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

Accepted Answer

A) 38.0 $\degree$ 
B) 35.1 $\degree$ 
C) 22.7 $\degree$ 
D) 12.3 $\degree$ 
A) 38.0 $\degree$ 
B) 35.1 $\degree$ 
C) 22.7 $\degree$ 
D) 12.3 $\degree$

Exam 22: Reflection and Refraction of Light

According to present theories of light,in some experiments light seems to be:

One phenomenon that demonstrates the particle nature of light is:

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 37.0 °\degree° with the normal,what is the angle of the refracted ray in the water?

A beam of light in air is incident at an angle of 30 °\degree° to the surface of a rectangular block of clear plastic (n = 1.46).The light beam first passes through the block and re-emerges from the opposite side into air at what angle to the normal to that surface?

A container of flint glass (n = 1.66)holds a small quantity of benzene (n = 1.501).What is the critical angle for internal reflection of a ray in the glass when it is incident on the glass-to-liquid surface?

The lowest possible value for the index of refraction is:

An underwater scuba diver sees the sun at an apparent angle of 30.0 °\degree° from the vertical.How far is the sun above the horizon? (nwater = 1.333)

As the angle of incidence is increased for a ray incident on a reflecting surface,the angle between the incident and reflected rays ultimately approaches what value?

A light ray incident on the interface between air and glass can undergo total internal reflection:

Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle?

Who formulated the theory explaining the photoelectric effect?

Fiber optics has to do with:

Of the values listed below,which is the greatest possible value for the index of refraction?

Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)at an angle of 60 °\degree° .What is the angle of reflection from the surface?

A line representing a wave front for a wave should be drawn:

When light from air hits a smooth piece of glass (n = 1.5)with the ray perpendicular to the glass surface,which of the following will occur?

What is the maximum possible arc that can be subtended by a rainbow? (Consider all possible viewing geometries).

Water has an index of refraction of 1.333.What is the speed of light through it? (c = 3.00 x 108 m/s)

A ray of light is incident on the mid-point of a glass prism surface at an angle of 20 °\degree° with the normal.For the glass,n = 1.60,and the prism apex angle is 35 °\degree° .What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?

Introduction

Motion in One Dimension

Vectors and Two-Dimensional Motion

The Laws of Motion

Energy

Momentum and Collisions

Rotational Motion and the Law of Gravity

Rotational Equilibrium and Rotational Dynamics

Solids and Fluids

Thermal Physics

Energy in Thermal Processes

The Laws of Thermodynamics

Vibrations and Waves

Sound

Electric Forces and Electric Fields

Electrical Energy and Capacitance

Current and Resistance

Direct-Current Circuits

Magnetism

Induced Voltages and Inductance

Alternating Current Circuits and Electromagnetic Waves

Mirrors and Lenses

Wave Optics

Optical Instruments

Relativity

Quantum Physics

Atomic Physics

Nuclear Physics

Nuclear Energy and Elementary Particles

Filters

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 37.0 $\degree$ with the normal,what is the angle of the refracted ray in the water?

A beam of light in air is incident at an angle of 30 $\degree$ to the surface of a rectangular block of clear plastic (n = 1.46).The light beam first passes through the block and re-emerges from the opposite side into air at what angle to the normal to that surface?

An underwater scuba diver sees the sun at an apparent angle of 30.0 $\degree$ from the vertical.How far is the sun above the horizon? (n_water = 1.333)

Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)at an angle of 60 $\degree$ .What is the angle of reflection from the surface?

Water has an index of refraction of 1.333.What is the speed of light through it? (c = 3.00 x 10⁸m/s)

A ray of light is incident on the mid-point of a glass prism surface at an angle of 20 $\degree$ with the normal.For the glass,n = 1.60,and the prism apex angle is 35 $\degree$ .What is the angle of incidence at the glass-to-air surface on the side opposite where the ray exits the prism?