MEDIUM
10th ICSE
IMPORTANT
Earn 100

A ray of light, after refraction through a concave lens emerges parallel to the principal axis. The incident ray when produced meets the principal axis at a point. Name the point.

Important Questions on Refraction Through a Lens

EASY
10th ICSE
IMPORTANT
Define the term focal length of a lens.
EASY
10th ICSE
IMPORTANT
What do you mean by the focal plane of a lens?
EASY
10th ICSE
IMPORTANT
State the condition for the following:

A lens has both its focal lengths equal.

EASY
10th ICSE
IMPORTANT
State the condition for the following:

A ray passes undeviated through the lens.

EASY
10th ICSE
IMPORTANT

The diagram below shows a lens as a combination of a glass block and two prisms.

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Name the lens formed by the combination.

EASY
10th ICSE
IMPORTANT

The diagram below shows a lens as a combination of a glass block and two prisms.

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Name the lens formed by the combination.

MEDIUM
10th ICSE
IMPORTANT
Distinguish between real and virtual image.
EASY
10th ICSE
IMPORTANT

Study the diagram given below. Name the lens LL'.

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