Question

What happens if the surface of reflection in the torch or in a head light of a vehicle is convex ?​

Answer 1

Explanation:

the convex mirror was not user in torch or in the headlight because the rays doesn't fall on object even though they reflect.so, convex is not used in touch and in the head light

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Answer 2

the rays emanating from the bulb after reflection from the mirror become parallel to the principal axis. ... A convex mirror always diverges the rays of light falling onto it. Hence it is never used in the headlight of a vehicle.