Question 1

A beam of light is incident at the polarizing angle on a hard glass plate of refractive index 1.6.The Brewster's angle of refraction is

Accepted Answer

A) 58S1U1P1$\circ$S1S1P0. 
B) 32S1U1P1$\circ$S1S1P0. 
C) 29S1U1P1$\circ$S1S1P0. 
D) 18S1U1P1$\circ$S1S1P0. 
A) 58S1U1P1$\circ$S1S1P0. 
B) 32S1U1P1$\circ$S1S1P0. 
C) 29S1U1P1$\circ$S1S1P0. 
D) 18S1U1P1$\circ$S1S1P0. A

Question 2

An incident ray makes an angle of 30S1U1P1$\circ$S1S1P0 with the horizontal in air as it hits a piece of glass with an index of refraction nglass = 1.52.How much does the ray deviate from its path inside the glass?

Accepted Answer

A) 10.5S1U1P1$\circ$S1S1P0 
B) 25.3S1U1P1$\circ$S1S1P0 
C) 14.7S1U1P1$\circ$S1S1P0 
D) 45.2S1U1P1$\circ$S1S1P0 
E) 0S1U1P1$\circ$S1S1P0 
A) 10.5S1U1P1$\circ$S1S1P0 
B) 25.3S1U1P1$\circ$S1S1P0 
C) 14.7S1U1P1$\circ$S1S1P0 
D) 45.2S1U1P1$\circ$S1S1P0 
E) 0S1U1P1$\circ$S1S1P0 B

Question 3

An object is located 40 cm in front of a concave mirror of focal length 12.5 cm.Where is the image located?

Accepted Answer

A) 12.5 cm 
B) 10.5 cm 
C) 20.0 cm 
D) 29.1 cm 
E) 18.2 cm 
A) 12.5 cm 
B) 10.5 cm 
C) 20.0 cm 
D) 29.1 cm 
E) 18.2 cm E

Question 4

A beam of light is incident at the polarizing angle on a glass plate.If Brewster's angle is 55.4S1U1P1$\circ$S1S1P0 what is the index of refraction of the glass?

Accepted Answer

A) 1.55 
B) 1.60 
C) 1.50 
D) 1.40 
E) 1.45 
A) 1.55 
B) 1.60 
C) 1.50 
D) 1.40 
E) 1.45

Question 5

A ray of light is incident on an equilateral triangular prism with an index of refraction of 1.23.The ray is parallel to the base of the prism when before it enters the prism as shown in the figure.What is the angle of the ray relative to the normal when it emerges from the triangular prism? (Assume that the ray does not exit from the base.)

Accepted Answer

A) 24S1U1P1$\circ$S1S1P0 
B) 30S1U1P1$\circ$S1S1P0 
C) 46S1U1P1$\circ$S1S1P0 
D) 54S1U1P1$\circ$S1S1P0 
E) 62S1U1P1$\circ$S1S1P0 
A) 24S1U1P1$\circ$S1S1P0 
B) 30S1U1P1$\circ$S1S1P0 
C) 46S1U1P1$\circ$S1S1P0 
D) 54S1U1P1$\circ$S1S1P0 
E) 62S1U1P1$\circ$S1S1P0

Question 6

Which of the following interface combinations have the smallest critical angle?

Accepted Answer

A) light traveling from ice to diamond 
B) light traveling from quartz to lucite 
C) light traveling from diamond to glass 
D) light traveling from Lucite to diamond 
E) light traveling from Lucite to quartz 
A) light traveling from ice to diamond 
B) light traveling from quartz to lucite 
C) light traveling from diamond to glass 
D) light traveling from Lucite to diamond 
E) light traveling from Lucite to quartz

Question 7

Light with a frequency of 6 * 1016 Hz is traveling in a material with index of refraction n = 1.5.What is its wavelength in this material?

Accepted Answer

A) 1.0 nm 
B) 2.0 nm 
C) 2.5 nm 
D) 3.3 nm 
E) 4.0 nm 
A) 1.0 nm 
B) 2.0 nm 
C) 2.5 nm 
D) 3.3 nm 
E) 4.0 nm

Question 8

A single convex spherical mirror is used to create an image of a 10.0-cm tall source that is located 35.0 cm to the left of the mirror.The magnitude of the radius of curvature for the mirror is 15.0 cm.Where does the image form?

Accepted Answer

A) 6.2 cm to the left of the mirror 
B) 6.2 cm to the right of the mirror 
C) 26.2 cm to the left of the mirror 
D) 26.2 cm to the right of the mirror 
E) 35.4 cm to the right of the mirror 
A) 6.2 cm to the left of the mirror 
B) 6.2 cm to the right of the mirror 
C) 26.2 cm to the left of the mirror 
D) 26.2 cm to the right of the mirror 
E) 35.4 cm to the right of the mirror

Question 9

When light travels across the interface from a material with a higher index of refraction to a material with a lower index of refraction,which of the following statements is always true?

Accepted Answer

A) The light never bends away from the interface between the two materials. 
B) The light never bends toward the interface between the two materials. 
C) The light never travels in a straight line across the interface between the two materials. 
D) The light never speeds up. 
A) The light never bends away from the interface between the two materials. 
B) The light never bends toward the interface between the two materials. 
C) The light never travels in a straight line across the interface between the two materials. 
D) The light never speeds up.

Question 10

A collimated laser beam moves downward an angle 20.0S1U1P1$\circ$S1S1P0 with respect to horizontal and strikes the left side of a ZnSe block.The block has an index of refraction of 2.44 and is surrounded by air with an index of 1.00.The left side of the glass block is vertical (90.0S1U1P1$\circ$S1S1P0 from horizontal)while the right side of the block slopes upward at an angle of 75.0S1U1P1$\circ$S1S1P0 from horizontal,i.e.,the block is thicker at the top than at the bottom.Determine the angle with respect to horizontal at which the light travels after it exits the right surface of the block.

Accepted Answer

A) 2.2S1U1P1$\circ$S1S1P0 
B) 0S1U1P1$\circ$S1S1P0 
C) 17S1U1P1$\circ$S1S1P0 
D) 8.1S1U1P1$\circ$S1S1P0 
E) 15S1U1P1$\circ$S1S1P0 
A) 2.2S1U1P1$\circ$S1S1P0 
B) 0S1U1P1$\circ$S1S1P0 
C) 17S1U1P1$\circ$S1S1P0 
D) 8.1S1U1P1$\circ$S1S1P0 
E) 15S1U1P1$\circ$S1S1P0

Question 11

Light from a green laser pointer (wavelength in air is 532 nm)travels into water (n = 1.33).What is the speed,wavelength,and frequency while the light is inside water.

Accepted Answer

A) Option A 
B) Option B 
C) Option C 
D) Option D 
E) Option E 
A) Option A 
B) Option B 
C) Option C 
D) Option D 
E) Option E

Question 12

An object is 50 cm from a concave mirror.The size of the real image is ½ the size of the object.The radius of curvature of the mirror is

Accepted Answer

A) 12.9 cm. 
B) 16.7 cm. 
C) 25.0 cm. 
D) 33.3 cm. 
A) 12.9 cm. 
B) 16.7 cm. 
C) 25.0 cm. 
D) 33.3 cm.

Question 13

The figure shows the boundary between two transparent materials with indexes of refraction n1 and n2.Ray A is found to suffer total internal reflection.Which one statement is correct?

Accepted Answer

A) n2 > n1 
B) Rays B and D must also suffer total internal reflection. 
C) Ray E must be totally internally reflected. 
D) Ray B may be totally internally reflected. 
E) Ray C may be totally internally reflected. 
A) n2 > n1 
B) Rays B and D must also suffer total internal reflection. 
C) Ray E must be totally internally reflected. 
D) Ray B may be totally internally reflected. 
E) Ray C may be totally internally reflected.

Question 14

Convex mirrors are often used in side-view mirrors on trucks.Such mirrors often warn "Objects in mirror are closer than they appear." Assume a convex mirror has a radius of curvature of 12.0 m and that there is a car that is 14.0 m behind the mirror.Find the magnitude of the distance between the mirror and the image of the car.

Accepted Answer

A) 4.2 m 
B) 6.5 m 
C) 10.5 m 
D) 14 m 
E) 16.2 m 
A) 4.2 m 
B) 6.5 m 
C) 10.5 m 
D) 14 m 
E) 16.2 m

Question 15

Light is incident on a heavy glass slab of refractive index 1.6.The speed of light in the glass is

Accepted Answer

A) 3.0 * 108 m/s. 
B) 2.5 * 108 m/s. 
C) 1.88 * 108 m/s. 
D) 1.5 * 10-8 m/s. 
A) 3.0 * 108 m/s. 
B) 2.5 * 108 m/s. 
C) 1.88 * 108 m/s. 
D) 1.5 * 10-8 m/s.

Question 16

A periscope consists of two flat mirrors and is used for viewing objects when an obstacle impedes the direct viewing.Suppose that Curios George is looking through a periscope at the man with the yellow hat whose hat is at do = 2.0 m from the upper mirror and that the two flat mirrors are separated by a distance L = 0.5 m.What is the distance D of the final image of the yellow hat from the lower mirror?

Accepted Answer

A) 1.0 m 
B) 1.5 m 
C) 2.0 m 
D) 2.5 m 
E) 3.0 m 
A) 1.0 m 
B) 1.5 m 
C) 2.0 m 
D) 2.5 m 
E) 3.0 m

Question 17

At what angle with the normal to the surface of the water must a beam of light enter the water so that the refracted beam makes an angle of 10S1U1P1$\circ$S1S1P0 to the normal of the water?

Accepted Answer

A) 10S1U1P1$\circ$S1S1P0 
B) 13S1U1P1$\circ$S1S1P0 
C) 15S1U1P1$\circ$S1S1P0 
D) 17S1U1P1$\circ$S1S1P0 
E) 20S1U1P1$\circ$S1S1P0 
A) 10S1U1P1$\circ$S1S1P0 
B) 13S1U1P1$\circ$S1S1P0 
C) 15S1U1P1$\circ$S1S1P0 
D) 17S1U1P1$\circ$S1S1P0 
E) 20S1U1P1$\circ$S1S1P0

Question 18

A concave spherical mirror has radius 25 cm.An object is placed at the mirror's center.Where is its image?

Accepted Answer

A) at the focal point 
B) at the center of the mirror 
C) at twice the focal length away from the mirror 
D) A and B are correct. 
E) B and C are correct. 
A) at the focal point 
B) at the center of the mirror 
C) at twice the focal length away from the mirror 
D) A and B are correct. 
E) B and C are correct.

Question 19

Which kind of curved mirror never suffers from spherical aberration?

Accepted Answer

A) convex 
B) concave 
C) circular 
D) None are correct. 
A) convex 
B) concave 
C) circular 
D) None are correct.

Question 20

The speed of light with wavelength 589.3 nm through an unknown uniform solid sample is 1.241 * 108 m/s.Identify the solid.

Accepted Answer

A) fused quartz 
B) typical glass 
C) quartz 
D) diamond 
A) fused quartz 
B) typical glass 
C) quartz 
D) diamond

Exam 32: Geometric Optics

A beam of light is incident at the polarizing angle on a hard glass plate of refractive index 1.6.The Brewster's angle of refraction is

An incident ray makes an angle of 30 ∘\circ∘ with the horizontal in air as it hits a piece of glass with an index of refraction nglass = 1.52.How much does the ray deviate from its path inside the glass?

An object is located 40 cm in front of a concave mirror of focal length 12.5 cm.Where is the image located?

A beam of light is incident at the polarizing angle on a glass plate.If Brewster's angle is 55.4 ∘\circ∘ what is the index of refraction of the glass?

Which of the following interface combinations have the smallest critical angle?

Light with a frequency of 6 * 1016 Hz is traveling in a material with index of refraction n = 1.5.What is its wavelength in this material?

A single convex spherical mirror is used to create an image of a 10.0-cm tall source that is located 35.0 cm to the left of the mirror.The magnitude of the radius of curvature for the mirror is 15.0 cm.Where does the image form?

When light travels across the interface from a material with a higher index of refraction to a material with a lower index of refraction,which of the following statements is always true?

Light from a green laser pointer (wavelength in air is 532 nm)travels into water (n = 1.33).What is the speed,wavelength,and frequency while the light is inside water.

An object is 50 cm from a concave mirror.The size of the real image is ½ the size of the object.The radius of curvature of the mirror is

The figure shows the boundary between two transparent materials with indexes of refraction n1 and n2.Ray A is found to suffer total internal reflection.Which one statement is correct?

Light is incident on a heavy glass slab of refractive index 1.6.The speed of light in the glass is

At what angle with the normal to the surface of the water must a beam of light enter the water so that the refracted beam makes an angle of 10 ∘\circ∘ to the normal of the water?

A concave spherical mirror has radius 25 cm.An object is placed at the mirror's center.Where is its image?

Which kind of curved mirror never suffers from spherical aberration?

The speed of light with wavelength 589.3 nm through an unknown uniform solid sample is 1.241 * 108 m/s.Identify the solid.

Overview

Motion in a Straight Line

Motion in Two and Three Dimensions

Force

Kinetic Energy, work, and Power

Potential Energy and Energy Conservation

Momentum and Collisions

Systems of Particles and Extended Objects

Circular Motion

Rotation

Static Equilibrium

Gravitation

Solids and Fluids

Oscillations

Waves

Sound

Temperature

Heat and the First Law of Thermodynamics

Ideal Gases

The Second Law of Thermodynamics

Electrostatics

Electric Fields and Gausss Law

Electric Potential

Capacitors

Current and Resistance

Direct Current Circuits

Magnetism

Magnetic Fields of Moving Charges

Electromagnetic Induction

Alternating Current Circuits

Electromagnetic Waves

Lenses and Optical Instruments

Wave Optics

Relativity

Quantum Physics

Quantum Mechanics

Atomic Physics

Elementary Particle Physics

Nuclear Physics

Filters

A beam of light is incident at the polarizing angle on a glass plate.If Brewster's angle is 55.4^$\circ$ what is the index of refraction of the glass?

Light with a frequency of 6 * 10¹⁶ Hz is traveling in a material with index of refraction n = 1.5.What is its wavelength in this material?

At what angle with the normal to the surface of the water must a beam of light enter the water so that the refracted beam makes an angle of 10^$\circ$ to the normal of the water?

The speed of light with wavelength 589.3 nm through an unknown uniform solid sample is 1.241 * 10⁸ m/s.Identify the solid.