GK
UNITS DEVICES DIMENSIONS AND MEASUREMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which instrument is used in submarine to see the objects above sea level?
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Periscope
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Polygraph
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Pykometer
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Photometer
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Explanation:
Detailed explanation-1: -Hence, an instrument used by submarines to observe objects above the surface of the water is a periscope.
Detailed explanation-2: -Periscope is the instrument used in submarines to view objects above sea level. Hypsometer is used to measure elevation or height.
Detailed explanation-3: -Detailed Solution. The correct answer is option 4 i.e., Periscope. A periscope consists of a series of mirrors used to observe objects at an offset distance from the eye. It is used in submarines to view objects above sea level.
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