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Question

Which of the following is used in the rear-view mirrors of vehicles?

A
Plane mirror
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B
Convex mirror
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C
Concave lens
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D
Any of these
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Solution

The correct option is D Convex mirror
In convex mirrors the light after falling on the surface diverges ( for rays coming from the objects far from the mirror). Hence, the objects appear smaller and closer which provides essential information to the driver of the vehicle as he gets a better picture of the vehicles behind him. Also, convex mirror has larger field of view.

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