Question 1

When light enters a medium with a higher index of refraction it

Accepted Answer

A)  is absorbed. 
B)  is bent away from the normal. 
C)  is bent towards the normal. 
D)  continues in the same direction. 
A)  is absorbed. 
B)  is bent away from the normal. 
C)  is bent towards the normal. 
D)  continues in the same direction.

Question 2

A curved mirror that cannot produce a real image of an object is ______________________.

Accepted Answer

The answer of A curved mirror that cannot produce a...

Question 3

The image viewed in a telescope is a magnified virtual image. To achieve this, a telescope must have

Accepted Answer

A)  a positive objective lens with a small focal length. 
B)  a positive eyepiece lens with a small focal length. 
C)  a negative objective lens with a large focal length. 
D)  a negative eyepiece lens with a large focal length. 
A)  a positive objective lens with a small focal length. 
B)  a positive eyepiece lens with a small focal length. 
C)  a negative objective lens with a large focal length. 
D)  a negative eyepiece lens with a large focal length.

Question 4

An object is placed 10 cm in front of a diverging lens of focal length -15 cm. The image will be located

Accepted Answer

A)  0.167 cm in front of the lens. 
B)  3.0 cm behind the lens. 
C)  3.0 cm in front of the lens. 
D)  6.0 cm in front of the lens. 
E)  6.0 cm behind the lens. 
A)  0.167 cm in front of the lens. 
B)  3.0 cm behind the lens. 
C)  3.0 cm in front of the lens. 
D)  6.0 cm in front of the lens. 
E)  6.0 cm behind the lens.

Question 5

The objective lens of a high-power microscope will have a ___________ (large, short) focal length and will be a __________ (converging, diverging) lens.

Accepted Answer

The answer of The objective lens of a high-power microscope...

Question 6

A shaving mirror and a make-up mirror both magnify the image. Thus, these mirrors are ___________ mirrors.

Accepted Answer

A)  plane 
B)  concave 
C)  convex 
A)  plane 
B)  concave 
C)  convex

Question 7

A raindrop is doing its part to form a primary rainbow. Red and blue light enter near the top of the raindrop together from the sun. Both red and blue are reflected once at the back surface of the drop, but when the two rays emerge on the sunward side

Accepted Answer

A)  the blue ray lies below the yellow ray and is more nearly horizontal than the yellow ray. 
B)  the red ray lies above the blue ray and is more nearly horizontal than the blue ray. 
C)  the blue ray lies above the red ray and is more nearly horizontal than the red ray. 
D)  none of these. 
A)  the blue ray lies below the yellow ray and is more nearly horizontal than the yellow ray. 
B)  the red ray lies above the blue ray and is more nearly horizontal than the blue ray. 
C)  the blue ray lies above the red ray and is more nearly horizontal than the red ray. 
D)  none of these.

Question 8

In normal use, the image seen through eyeglasses is

Accepted Answer

A)  virtual. 
B)  real. 
C)  both A and B 
A)  virtual. 
B)  real. 
C)  both A and B

Question 9

Which of the following optical elements used alone can produce a real image of an object?

Accepted Answer

A)  Convex mirror 
B)  Plane mirror 
C)  Negative lens 
D)  Concave mirror 
E)  Prism 
A)  Convex mirror 
B)  Plane mirror 
C)  Negative lens 
D)  Concave mirror 
E)  Prism

Question 10

While looking into a mirror, you notice that the image of a tree is projected onto the back of a chair (the positions of the tree and image are shown below). You must be looking into

Accepted Answer

A)  a plane mirror. 
B)  a convex mirror. 
C)  a concave mirror. 
D)  a negative mirror. 
A)  a plane mirror. 
B)  a convex mirror. 
C)  a concave mirror. 
D)  a negative mirror.

Question 11

Light passing from glass into air bends _________________ (toward, away from) the normal to the surface because it is traveling ____________ (slower, faster) in the glass than in air.

Accepted Answer

The answer of Light passing from glass into air bends...

Question 12

Two pools of water contain the same depth of water but one has a blue bottom and the other red. When looking into the pools from above,

Accepted Answer

A)  the red bottom pool appears deeper. 
B)  the pools appear to have the same depth. 
C)  the blue bottom pool appears deeper. 
D)  it is not possible to tell which will appear deeper from this information. 
A)  the red bottom pool appears deeper. 
B)  the pools appear to have the same depth. 
C)  the blue bottom pool appears deeper. 
D)  it is not possible to tell which will appear deeper from this information.

Question 13

A ray of light traveling through water passes through an air bubble. Which path does it take?

Accepted Answer

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

Question 14

A ray emerges from water (n = 1.33) into air. The light ray will

Accepted Answer

A)  bend toward the normal on the air side. 
B)  bend away from the normal on the air side. 
C)  emerge in air at the same angle as in the water. 
A)  bend toward the normal on the air side. 
B)  bend away from the normal on the air side. 
C)  emerge in air at the same angle as in the water.

Question 15

In order for a telescope to produce a large magnification one would select lenses of

Accepted Answer

A)  short focal length for the objective and long focal length for the eyepiece. 
B)  short focal length for both objective and eyepiece. 
C)  large focal length for both objective and eyepiece. 
D)  large focal length for the objective and short focal length for the eyepiece. 
A)  short focal length for the objective and long focal length for the eyepiece. 
B)  short focal length for both objective and eyepiece. 
C)  large focal length for both objective and eyepiece. 
D)  large focal length for the objective and short focal length for the eyepiece.

Question 16

A nearsighted person requires glasses with lenses that are

Accepted Answer

A)  converging, to see distant objects. 
B)  converging, to see near objects. 
C)  diverging, to see distant objects. 
D)  diverging, to see near objects. 
A)  converging, to see distant objects. 
B)  converging, to see near objects. 
C)  diverging, to see distant objects. 
D)  diverging, to see near objects.

Question 17

A real image of a candle formed with a converging lens can be viewed on a screen placed

Accepted Answer

A)  nowhere; that is, it can't be viewed on a screen at all. 
B)  at either focal point of the lens. 
C)  anywhere on the side of the lens from which the light emerges. 
D)  at a single position determined by the distance of the object and the construction of the lens. 
A)  nowhere; that is, it can't be viewed on a screen at all. 
B)  at either focal point of the lens. 
C)  anywhere on the side of the lens from which the light emerges. 
D)  at a single position determined by the distance of the object and the construction of the lens.

Question 18

A Jurassic dinosaur is approaching your vehicle and appears in the side-view mirror. It is larger than it appears in the mirror. This means that

Accepted Answer

A)  its image size is larger than what the flat rearview mirror shows. 
B)  its image size is smaller than what the flat rearview mirror shows. 
C)  it is inverted and real. 
D)  it is a virtual image and inverted. 
A)  its image size is larger than what the flat rearview mirror shows. 
B)  its image size is smaller than what the flat rearview mirror shows. 
C)  it is inverted and real. 
D)  it is a virtual image and inverted.

Question 19

A plane mirror will always produce a

Accepted Answer

A)  virtual, inverted image. 
B)  real, erect image. 
C)  virtual, erect image. 
D)  real, inverted image. 
A)  virtual, inverted image. 
B)  real, erect image. 
C)  virtual, erect image. 
D)  real, inverted image.

Question 20

One ray that is useful in locating the image formed by a convex mirror is the ray that is incident on the mirror in a path directed toward the focal point. This ray is reflected

Accepted Answer

A)  directly back along its incident path. 
B)  through the center of curvature. 
C)  on a path tangent to the mirror. 
D)  on a path parallel to the mirror axis. 
A)  directly back along its incident path. 
B)  through the center of curvature. 
C)  on a path tangent to the mirror. 
D)  on a path parallel to the mirror axis.

Exam 17: Light and Image Formation

When light enters a medium with a higher index of refraction it

A curved mirror that cannot produce a real image of an object is ______________________.

The image viewed in a telescope is a magnified virtual image. To achieve this, a telescope must have

An object is placed 10 cm in front of a diverging lens of focal length -15 cm. The image will be located

The objective lens of a high-power microscope will have a ___________ (large, short) focal length and will be a __________ (converging, diverging) lens.

A shaving mirror and a make-up mirror both magnify the image. Thus, these mirrors are ___________ mirrors.

A raindrop is doing its part to form a primary rainbow. Red and blue light enter near the top of the raindrop together from the sun. Both red and blue are reflected once at the back surface of the drop, but when the two rays emerge on the sunward side

In normal use, the image seen through eyeglasses is

Which of the following optical elements used alone can produce a real image of an object?

While looking into a mirror, you notice that the image of a tree is projected onto the back of a chair (the positions of the tree and image are shown below). You must be looking into

Light passing from glass into air bends _________________ (toward, away from) the normal to the surface because it is traveling ____________ (slower, faster) in the glass than in air.

Two pools of water contain the same depth of water but one has a blue bottom and the other red. When looking into the pools from above,

A ray of light traveling through water passes through an air bubble. Which path does it take?

A ray emerges from water (n = 1.33) into air. The light ray will

In order for a telescope to produce a large magnification one would select lenses of

A nearsighted person requires glasses with lenses that are

A real image of a candle formed with a converging lens can be viewed on a screen placed

A Jurassic dinosaur is approaching your vehicle and appears in the side-view mirror. It is larger than it appears in the mirror. This means that

A plane mirror will always produce a

One ray that is useful in locating the image formed by a convex mirror is the ray that is incident on the mirror in a path directed toward the focal point. This ray is reflected

Physics, the Fundamental Science

Describing Motion

Falling Objects and Projectile Motion

Newtons Laws: Explaining Motion

Circular Motion, the Planets, and Gravity

Energy and Oscillations

Momentum and Impulse

Rotational Motion of Solid Objects

The Behavior of Fluids

Temperature and Heat

Heat Engines and the Second Law of Thermodynamics

Electrostatic Phenomena

Electric Circuits

Magnets and Electromagnetism

Making Waves

Light Waves and Color

The Structure of the Atom

The Nucleus and Nuclear Energy

Relativity

Beyond Everyday Phenomena

Filters

The objective lens of a high-power microscope will have a _ (large, short) focal length and will be a (converging, diverging) lens.

Light passing from glass into air bends _____ (toward, away from) the normal to the surface because it is traveling (slower, faster) in the glass than in air.