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Question

The device which is used in submarianes to see the objects which are above the surface of water is:

A
Periscope
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B
Microscope
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C
Kaleidoscope
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D
Telescope
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Solution

The correct option is A Periscope
Periscope is a instrument that uses two mirrors at 45 degree angles to the direction in which one desires to see from a hidden postion. It is used in submarines to search targets and threats on the surface of water and in air.

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