NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Easy

1 of 1

Application +4 | -1

If sink and source temperature of a refrigerator are

4^{\circ} \mathrm{C}

and

15^{\circ} \mathrm{C}

respectively. Then efficiency of refrigerator is

View answer and explanation

Correct option: B

0.0382

Option A (0.0382) is correct because the efficiency of a refrigerator is calculated using the formula

\eta = 1 - \frac{{T_2}}{{T_1}}

, where

T_1

and

T_2

are the source and sink temperatures in Kelvin.

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