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Which of the following can make a paral...

Which of the following can make a parallel beam of light from a point source is incident on it ?

A

Concave mirror as well as convex lens

B

Convex mirror as well as concave lens

C

Two plane mirrors placed at `90^(@)` to each other

D

Concave mirror as well as concave lens

Text Solution

Verified by Experts

The correct Answer is:
A
When a point source is held at focus of a concave mirror or a convex lens, we get a parallel beam of light.
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