Why do torches and car reflectors use convex mirrors?

Question: Why do torches and car reflectors use convex mirrors?

Answer: Convex mirror, also known as a diverging mirror, possess the ability to diverge the beam of light falling upon it. Thus when it is used in torches, car reflectors and street lamps, it would diverge the falling rays and thus spread the light and increase the visibility area. 

Therefore, torches and car reflectors use convex mirrors.

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Updated on: 10-Oct-2022

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