Question 1

The index of refraction of transparent materials is

Accepted Answer

A)  equal to 1. 
B)  greater than 1. 
C)  less than 1. 
D)  any of these. 
A)  equal to 1. 
B)  greater than 1. 
C)  less than 1. 
D)  any of these. B

Question 2

Optics is divided into ray optics and ______________ optics.

Accepted Answer

physical, or wave

Question 3

When light enters a denser medium, the speed of the light ______________.

Accepted Answer

decreases

Question 4

A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the lens surface on the principal axis. Sketch a ray diagram and give the characteristics of the image.

Accepted Answer

Real, inve

Question 5

An object is placed 20 cm from a converging spherical lens. Sketch ray diagrams and give the general characteristics of the image for (a) a lens with a focal length of f = 15 cm and (b) a lens with a focal length of f = 25 cm.

Accepted Answer

a. Virtual, upright,

Question 6

All real images

Accepted Answer

A)  cannot be focused on a screen. 
B)  are erect. 
C)  can be focused on a screen. 
D)  are inverted. 
A)  cannot be focused on a screen. 
B)  are erect. 
C)  can be focused on a screen. 
D)  are inverted.

Question 7

An example of a converging spherical mirror is a

Accepted Answer

A)  flashlight reflector. 
B)  bathroom mirror. 
C)  spherical truck mirror. 
D)  hubcap. 
A)  flashlight reflector. 
B)  bathroom mirror. 
C)  spherical truck mirror. 
D)  hubcap.

Question 8

The image of a convex mirror is always

Accepted Answer

A)  virtual, inverted, and larger. 
B)  virtual, upright, and smaller. 
C)  real, upright, and smaller. 
D)  real, inverted, and larger. 
A)  virtual, inverted, and larger. 
B)  virtual, upright, and smaller. 
C)  real, upright, and smaller. 
D)  real, inverted, and larger.

Question 9

For total internal reflection, light is ______________ and none is ______________.

Accepted Answer

A)  reflected, refracted 
B)  refracted; transmitted 
C)  transmitted, refracted 
D)  transmitted; reflected 
A)  reflected, refracted 
B)  refracted; transmitted 
C)  transmitted, refracted 
D)  transmitted; reflected

Question 10

The least diffraction occurs for

Accepted Answer

A)  $\lambda$  d. 
D)  none of these; that is, it makes no difference. 
A)  $\lambda$  d. 
D)  none of these; that is, it makes no difference.

Question 11

According to the law of reflection, the angle of reflection is equal to ______________.

Accepted Answer

the angle

Question 12

A liquid crystal display (LCD) using a "twisting" effect in the display involves

Accepted Answer

A)  polarization. 
B)  interference. 
C)  refraction. 
D)  diffraction. 
A)  polarization. 
B)  interference. 
C)  refraction. 
D)  diffraction.

Question 13

The observation of a "wet spot" on a hot highway in the summer is caused by

Accepted Answer

A)  dispersion. 
B)  diffraction. 
C)  refraction. 
D)  reflection. 
A)  dispersion. 
B)  diffraction. 
C)  refraction. 
D)  reflection.

Question 14

A change in the direction of a wave because of a change in the velocity of the wave is called ______________.

Accepted Answer

The answer of A change in the direction of a...

Question 15

When a wave is ______________, the angle of reflection equals the angle of incidence.

Accepted Answer

The answer of When a wave is ______________, the angle...

Question 16

A lens that thicker at the edge than at the center is

Accepted Answer

A)  a diverging lens only. 
B)  a convex lens only. 
C)  a converging lens only. 
D)  both a convex lens and a converging lens. 
A)  a diverging lens only. 
B)  a convex lens only. 
C)  a converging lens only. 
D)  both a convex lens and a converging lens.

Question 17

A diverging lens produces an image of a real object. This image is

Accepted Answer

A)  reduced, upright, and virtual. 
B)  enlarged, inverted, and real. 
C)  reduced, inverted, and virtual. 
D)  enlarged, upright, and real. 
E)  enlarged, upright, and virtual. 
A)  reduced, upright, and virtual. 
B)  enlarged, inverted, and real. 
C)  reduced, inverted, and virtual. 
D)  enlarged, upright, and real. 
E)  enlarged, upright, and virtual.

Question 18

A reflected ray of light leaves a plane mirror's surface at an angle of 60° relative to the normal. The angle of incidence was

Accepted Answer

A)  60° relative to the surface. 
B)  30° relative to the normal. 
C)  90° from the surface. 
D)  none of these. 
A)  60° relative to the surface. 
B)  30° relative to the normal. 
C)  90° from the surface. 
D)  none of these.

Question 19

A(n) ______________ image is defined as one that cannot be brought to a focus on a screen.

Accepted Answer

A)  virtual 
B)  real 
C)  upright 
D)  inverted 
A)  virtual 
B)  real 
C)  upright 
D)  inverted

Question 20

A rainbow results from

Accepted Answer

A)  both reflection and refraction. 
B)  refraction only. 
C)  neither reflection nor refraction. 
D)  reflection only. 
A)  both reflection and refraction. 
B)  refraction only. 
C)  neither reflection nor refraction. 
D)  reflection only.

The index of refraction of transparent materials is

Optics is divided into ray optics and ______________ optics.

When light enters a denser medium, the speed of the light ______________.

A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the lens surface on the principal axis. Sketch a ray diagram and give the characteristics of the image.

An object is placed 20 cm from a converging spherical lens. Sketch ray diagrams and give the general characteristics of the image for (a) a lens with a focal length of f = 15 cm and (b) a lens with a focal length of f = 25 cm.

All real images

An example of a converging spherical mirror is a

The image of a convex mirror is always

For total internal reflection, light is and none is .

The least diffraction occurs for

According to the law of reflection, the angle of reflection is equal to ______________.

A liquid crystal display (LCD) using a "twisting" effect in the display involves

The observation of a "wet spot" on a hot highway in the summer is caused by

A change in the direction of a wave because of a change in the velocity of the wave is called ______________.

When a wave is ______________, the angle of reflection equals the angle of incidence.

A lens that thicker at the edge than at the center is

A diverging lens produces an image of a real object. This image is

A reflected ray of light leaves a plane mirror's surface at an angle of 60° relative to the normal. The angle of incidence was

A(n) ______________ image is defined as one that cannot be brought to a focus on a screen.

A rainbow results from

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

Exam 7: The Chemical Elements

The index of refraction of transparent materials is

Optics is divided into ray optics and ______________ optics.

When light enters a denser medium, the speed of the light ______________.

A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the lens surface on the principal axis. Sketch a ray diagram and give the characteristics of the image.

An object is placed 20 cm from a converging spherical lens. Sketch ray diagrams and give the general characteristics of the image for (a) a lens with a focal length of f = 15 cm and (b) a lens with a focal length of f = 25 cm.

All real images

An example of a converging spherical mirror is a

The image of a convex mirror is always

For total internal reflection, light is ______________ and none is ______________.

The least diffraction occurs for

According to the law of reflection, the angle of reflection is equal to ______________.

A liquid crystal display (LCD) using a "twisting" effect in the display involves

The observation of a "wet spot" on a hot highway in the summer is caused by

A change in the direction of a wave because of a change in the velocity of the wave is called ______________.

When a wave is ______________, the angle of reflection equals the angle of incidence.

A lens that thicker at the edge than at the center is

A diverging lens produces an image of a real object. This image is

A reflected ray of light leaves a plane mirror's surface at an angle of 60° relative to the normal. The angle of incidence was

A(n) ______________ image is defined as one that cannot be brought to a focus on a screen.

A rainbow results from

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

For total internal reflection, light is and none is .