CAIE IGCSE Physics 3.2.3 Thin Lenses Topic Practice

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Question 1

[Maximum number: 1]

Which statement about a thin converging lens is correct?

A

All rays of light refracted by the lens pass through the principal focus.

B

All rays initially parallel to the principal axis of the lens are refracted through the principal focus.

C

The focal length of the lens is the distance between the image and the principal focus.

D

The focal length of the lens is the distance between the object and the image.

Question 2

[Maximum number: 1]

The points labelled F are the principal foci of a lens. A beam of parallel light is incident on the

lens.

Which diagram shows the path of the light after it passes through the lens?

A
Figure for Question 2 — CAIE IGCSE Physics — Option A
B
Figure for Question 2 — CAIE IGCSE Physics — Option B
C
Figure for Question 2 — CAIE IGCSE Physics — Option C
D
Figure for Question 2 — CAIE IGCSE Physics — Option D

Question 3

[Maximum number: 1]

Which statement about a thin converging lens is correct?

A

All rays of light refracted by the lens pass through the principal focus.

B

All rays initially parallel to the principal axis of the lens are refracted through the principal focus.

C

The focal length of the lens is the distance between the image and the principal focus.

D

The focal length of the lens is the distance between the object and the image.

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