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Solar Energy

Concave mirro...

Question

Concave mirrors are used to solar energy.

A

focus

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B

diverge

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C

block

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Solution

The correct option is A focus
Light rays from sun are approximately parallel at earth's surface. When such rays are incident on a concave mirror, it focusses all the light rays to a small region (called focus). Hence, concave mirror focusses all energy to a very small region.

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