Question

what is reflecting Periscope define​

Answer 1

Making a Periscope. A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube.

Answer 2

a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view.

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