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Choose the incorrect statement from the following
S1 : The efficiency of a heat engine can be 1 , but the
\( \mathrm{P} \) coefficient of performance of a refrigerator can never be infinity
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S2 : The first law of thermodynamics is basically the principle of conservation of energy

S3: The second law of thermodynamics does not allow several phenomena consistent with the first law

S4 : A process, whose sole result is the transfer of heat from a colder object to a hotter object is impossible
[AMU (Med.) 2010]
(a) \( \mathrm{S} 1 \)
(b) \( \mathrm{S} 3 \)
(c) \( \mathrm{S} 2 \)
(d) \( \mathrm{S} 4 \)
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