Question

What is a Periscope?

Answer 1

It is an apparatus consisting of a tube attached to a set of mirrors or prisms, by which an observer (typically in a submerged submarine or behind a high obstacle) can see things that are otherwise out of sight.






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Answer 2

The definition of a periscope is a set of lenses, mirrors or prisms on a tube allowing the viewer to see objected reflected on the other end.