Science, asked by ghartimagarlaxman19, 4 months ago

used to observe and keep a
watch on the objects
or person on the ground from an
underground bunker. ​

Answers

Answered by nilumarmat09
2

Answer:

A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position.

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