Statement-A: Second law of thermodynamics rules out the possibility of a perfect heat engine with 100% efficiency.

Statement-B: Coefficient of performance of a refrigerator cannot be infinity.

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Statement A is true, Statement B is false

Statement A is false, Statement B is true

Both Statement A and Statement B are true

Both Statement A and Statement B are false

answer is C.

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Detailed Solution

According Kelvin planck statement, it is impossible to construct heat engine with 100% efficiency. According to Clasius statement, heat cannot be transferred from cold body to hot body without doing external work.

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