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Question

A perpetual motion machine is ________ . 

A.

A thermodynamic machine 

B.

A non-thermodynamic machine 

C.

A hypothetical machine whose operation would violate the laws of thermodynamics 

D.

None of these 

Answer ( Option C)

A hypothetical machine whose operation would violate the laws of thermodynamics 

Solution

A perpetual motion machine is a hypothetical machine whose operation would violate the laws of thermodynamics.

Refer Sol. 5.11 for more details

Hence, the correct option is (C).

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