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JEE · NEET Previous Year Question

$The coefficient of performance of a Carnot refrigerator working between 3 0^{o} C and 0^{o} C is$

Topic: NEET PYQ

Answer: C. Full step-by-step solution below.

A $10$
B $1$
C $9$
D $0$

Correct answer: C

Solution

(c) Coefficient of performance K = \frac{T _{2}}{T _{1} - T _{2}} = \frac{273}{303 - 273} = \frac{273}{30} = 9

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