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Question

The conical or pointed shape of aircrafts or submarines, which is also called as stream-lined shape, helps them to:

A
increase their load bearing capacity
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B
reduce their electrical power loss
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C
reduce the friction offered by the medium
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D
increase heating of their engines
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Solution

The correct option is C reduce the friction offered by the medium
The conical or pointed shape of aircrafts or submarines, which is also called as stream-lined shape, has been devised to reduce the friction offered by air or water when the objects are moving through them. Reducing the friction helps to conserve fuel, less heating of body of the aircraft etc.

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