AnswersELPGEQ2 MJ Science 3 - 2002100 HCPS v24Refraction and Lenses

Refraction and Lenses Answers

10 verified answers
1
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Danny drew a ray diagram to show the image of a plastic bottle produced by a concave lens. Which describes how the bottle should appear in the diagram?

A
The image of the bottle should appear larger than the actual bottle.
B
The image of the bottle should be upside down compared to the actual bottle.
C
The actual bottle should appear larger than the image of the bottle.
D
The actual bottle should be upside down compared to the image of the bottle.
2
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Cleo stated that light travels through air in straight paths, and when it moves from air to water, light changes direction, speeds up, and bends toward the normal.

A
Light travels through air and water in angled, scattered paths.
B
Light does not change direction when it moves from air into water.
C
Light slows down when it moves from air into water.
D
Light bends away from the normal when it moves from air into water.
3

Roshan makes the table below to describe how to draw a ray diagram for a convex lens.What error did Roshan make?

Question illustration
A
The ray that goes through the center should bend and go through the focal point on the other side.
B
The ray that starts out parallel with the main axis should bend toward the axis and go through the focal point on the other side.
C
The ray that goes parallel to the main axis after passing through the lens should also be parallel from the object to the lens.
D
The rays in the table describe how rays are drawn for a concave lens rather than for a convex lens.
4

Samantha is viewing a real image formed by a lens of a diamond ring. Which must be true about the image?

A
It could not be captured on film.
B
It is larger than the actual ring.
C
It was formed by a concave lens.
D
It is upside down.
5

Akio draws the ray diagram shown.Which best explains how to correct Akio’s mistake?

Question illustration
A
Change the lens so it appears convex instead of concave.
B
Move the small car so it appears on the left side of the lens.
C
Make the small car much larger than the other car.
D
Draw the top ray so that it passes through the focal point on the right.
6

When parallel light rays exit a concave lens, the light rays

A
diverge.
B
converge.
C
come together.
D
remain parallel.
7

The chart shows the densities of four substances.Which list shows the order in which white light passes through these substances, from fastest to slowest?

Question illustration
A
Z, Y, X, W
B
W, X, Y, Z
C
W, X, Z, Y
D
Y, X, Z, W
8

Olaf takes a picture of his dog using a digital camera. Which is true regarding the image of the dog detected by sensors in the camera?

A
It forms where light rays coming from the dog converge.
B
It can only be seen from the same side of the lens as the dog.
C
It forms where light rays coming from the camera spread apart.
D
It can only be seen when the camera lens is very close to the dog.
9

The diagram shows a clear plastic lens.A student shines a flashlight on the lens. Which best describes what happens when light rays exit the lens?

Question illustration
A
They are all refracted away from a central axis.
B
They are all refracted toward a central axis.
C
They exit parallel to the path in which they entered.
D
They exit at a slower speed from which they entered.
10

Which kind of image can never be projected and forms where light rays appear to originate?

A
virtual
B
real
C
inverted
D
enlarged

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