Question

✯Which instrument can help a man in a submarine see objects on the surface of sea?





NO IRRELEVANT ANSWERS PLEASE.






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Answer 1

Answer:

Periscope is the right answer .

Answer 2

Hi friend ☺️

Periscope:→

• optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.