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JEE PHYSICS MCQ: THERMODYNAMICS
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Understanding
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(A): A refrigerator transfers heat from lower temperature to higher temperature.
(R): Heat cannot be transferred from lower temperature to higher temperature without doing any external work.
(R): Heat cannot be transferred from lower temperature to higher temperature without doing any external work.
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Correct option: B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
Option B is correct because a refrigerator does transfer heat from a lower to a higher temperature, and this requires external work, as stated by the second law of thermodynamics.
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