Room temperature, \(T_{2}=36^{\circ} C =309 K\)
Coefficient of performance \(=\frac{T_{1}}{T_{2}-T_{1}}\)
\(=\frac{282}{309-282}\)
\(=10.44\)
Therefore, the coefficient of performance of the given refrigerator is \(10.44\)
$(3^{1.4}=4.6555)$ [હવાને આદર્શ વાયુ લો]