Question 1

As a monochromatic light ray is transmitted through an air-to-glass boundary,what happens to the wavelength?

Accepted Answer

A) increases 
B) decreases 
C) remains unchanged 
D) approaches zero value 
A) increases 
B) decreases 
C) remains unchanged 
D) approaches zero value

Question 2

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n1,the middle n2 and the bottom one n3.If n1 > n2 > n3,and a ray of light in air strikes the top layer,at which surface given can total internal reflection occur first?

Accepted Answer

A) the top surface 
B) the surface between materials with indices n1 and n2 
C) the surface between materials with indices n2 and n3 
D) Total internal reflection cannot occur at any of these surfaces. 
A) the top surface 
B) the surface between materials with indices n1 and n2 
C) the surface between materials with indices n2 and n3 
D) Total internal reflection cannot occur at any of these surfaces.

Question 3

When white light disperses as it passes through a prism,which of the following colors moves at the lowest speed in the prism?

Accepted Answer

A) blue 
B) green 
C) yellow 
D) red 
A) blue 
B) green 
C) yellow 
D) red

Question 4

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 5

If total internal reflection occurs at a glass-air surface:

Accepted Answer

A) no light is transmitted. 
B) no light is reflected. 
C) light is leaving the air and hitting the glass with an incident angle greater than the critical angle. 
D) light is leaving the air and hitting the glass with an incident angle less than the critical angle. 
A) no light is transmitted. 
B) no light is reflected. 
C) light is leaving the air and hitting the glass with an incident angle greater than the critical angle. 
D) light is leaving the air and hitting the glass with an incident angle less than the critical angle.

Question 6

Light of colors 1 and 2 are sent through a prism and the rays of light of color 2 bend more.Which of the following is not true?

Accepted Answer

A) The index of refraction for color 2 is greater than that for color 1. 
B) The two colors of light have different frequencies associated with them. 
C) The speed of light for color 2 is greater than that for color 1 in this prism. 
D) The wavelength for color 1 is different than that for color 2 in this prism. 
A) The index of refraction for color 2 is greater than that for color 1. 
B) The two colors of light have different frequencies associated with them. 
C) The speed of light for color 2 is greater than that for color 1 in this prism. 
D) The wavelength for color 1 is different than that for color 2 in this prism.

Question 7

In Huygens's construction,all points on a wave front:

Accepted Answer

A) act as point sources for the production of secondary spherical waves. 
B) act as particles. 
C) demonstrate the dual nature of light. 
D) must be sources of plane waves. 
A) act as point sources for the production of secondary spherical waves. 
B) act as particles. 
C) demonstrate the dual nature of light. 
D) must be sources of plane waves.

Question 8

A beam of light in air is incident at an angle of 24.0° 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) 36° 
B) 16° 
C) 24.0° 
D) 29° 
E) 0.64° 
A) 36° 
B) 16° 
C) 24.0° 
D) 29° 
E) 0.64°

Question 9

The photoelectric effect was discovered by:

Accepted Answer

A) Maxwell. 
B) Einstein. 
C) Hertz. 
D) Planck. 
A) Maxwell. 
B) Einstein. 
C) Hertz. 
D) Planck.

Question 10

Dez pours carbon tetrachloride (n = 1.46)into a container made of crown glass (n = 1.52).The light ray in glass incident on the glass-to-liquid boundary makes an angle of 24.0° with the normal.Find the angle of the corresponding refracted ray.

Accepted Answer

A) 23.0° 
B) 0.437° 
C) 25.1° 
D) 60.4° 
E) 24.0° 
A) 23.0° 
B) 0.437° 
C) 25.1° 
D) 60.4° 
E) 24.0°

As a monochromatic light ray is transmitted through an air-to-glass boundary,what happens to the wavelength?

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n₁,the middle n₂ and the bottom one n₃.If n₁ > n₂ > n₃,and a ray of light in air strikes the top layer,at which surface given can total internal reflection occur first?

When white light disperses as it passes through a prism,which of the following colors moves at the lowest speed in the prism?

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

If total internal reflection occurs at a glass-air surface:

Light of colors 1 and 2 are sent through a prism and the rays of light of color 2 bend more.Which of the following is not true?

In Huygens's construction,all points on a wave front:

A beam of light in air is incident at an angle of 24.0° 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?

The photoelectric effect was discovered by:

Dez pours carbon tetrachloride (n = 1.46)into a container made of crown glass (n = 1.52).The light ray in glass incident on the glass-to-liquid boundary makes an angle of 24.0° with the normal.Find the angle of the corresponding refracted ray.

Units, Trigonometry, and Vectors

Motion in One Dimension

Motion in Two Dimensions

Newtons Laws of Motion

Energy

Momentum, Impulse, and Collisions

Rotational Motion and Gravitation

Rotational Equilibrium and Dynamics

Fluids and Solids

Thermal Physics

Energy in Thermal Processes

The Laws of Thermodynamics

Vibrations and Waves

Sound

Electric Forces and 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

Exam 22: Reflection and Refraction of Light

As a monochromatic light ray is transmitted through an air-to-glass boundary,what happens to the wavelength?

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n1,the middle n2 and the bottom one n3.If n1 > n2 > n3,and a ray of light in air strikes the top layer,at which surface given can total internal reflection occur first?

When white light disperses as it passes through a prism,which of the following colors moves at the lowest speed in the prism?

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

If total internal reflection occurs at a glass-air surface:

Light of colors 1 and 2 are sent through a prism and the rays of light of color 2 bend more.Which of the following is not true?

In Huygens's construction,all points on a wave front:

A beam of light in air is incident at an angle of 24.0° 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?

The photoelectric effect was discovered by:

Dez pours carbon tetrachloride (n = 1.46)into a container made of crown glass (n = 1.52).The light ray in glass incident on the glass-to-liquid boundary makes an angle of 24.0° with the normal.Find the angle of the corresponding refracted ray.

Units, Trigonometry, and Vectors

Motion in One Dimension

Motion in Two Dimensions

Newtons Laws of Motion

Energy

Momentum, Impulse, and Collisions

Rotational Motion and Gravitation

Rotational Equilibrium and Dynamics

Fluids and Solids

Thermal Physics

Energy in Thermal Processes

The Laws of Thermodynamics

Vibrations and Waves

Sound

Electric Forces and 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

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n₁,the middle n₂ and the bottom one n₃.If n₁ > n₂ > n₃,and a ray of light in air strikes the top layer,at which surface given can total internal reflection occur first?