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Question

Assertion: Convex mirrors are used as reflectors in street lamps.
Reason: Convex mirrors are diverging mirrors and hence helps the light to spread over a larger area.

A
Both assertion and reason are true and the reason is the correct explanation of the assertion.
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B
Both assertion and reason are false statements.
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C
Assertion is a true statement but the reason is false.
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D
Both assertion and reason are true and the reason is not the correct explanation of the assertion.
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Solution

The correct option is A Both assertion and reason are true and the reason is the correct explanation of the assertion.
Mirror whose reflecting surface is curved outward is known as a convex mirror.
A beam of light falling on a convex mirror diverges after reflection, hence they are called diverging mirrors.
This property of divergence of a beam of light after reflection is used as reflectors in street lamps to spread light over a large area.

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