Question

what is a periscope? for what purpose it is used? Explain it's working with a relevant diagram​

Answer 1

Answer:

A periscope lets you look around walls, corners or other obstacles. ... A periscope is a useful example of the law of reflection at work. It's important that your mirrors are placed at a 45° angle, because light always reflects away from a mirror at the same angle that it hits it.

Explanation:

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