A) 1.25
B) 1.3
C) 1.4
D) 1.2
Correct Answer: D
Solution :
\[{{(COP)}_{\text{Ref}}}=\frac{{{T}_{2}}}{{{T}_{1}}-{{T}_{2}}}=\frac{1}{\frac{{{T}_{1}}}{{{T}_{2}}}-1}=5\] \[5\,\frac{{{T}_{1}}}{{{T}_{2}}}-5=1\] \[\frac{{{T}_{1}}}{{{T}_{2}}}=\frac{6}{5}=1.2\]You need to login to perform this action.
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