A) 1.2
B) 1.25
C) 3.33
D) 4
Correct Answer: B
Solution :
\[COP=\frac{{{T}_{2}}}{{{T}_{1}}-{{T}_{2}}}\] \[=\frac{1}{\frac{{{T}_{1}}}{{{T}_{2}}}-1}=4\] \[4\frac{{{T}_{1}}}{{{T}_{2}}}-4=1\] \[\frac{{{T}_{1}}}{{{T}_{2}}}=\frac{5}{4}=1.25\]You need to login to perform this action.
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