A) 200 K
B) 400 K
C) 600 K
D) 800 K
Correct Answer: B
Solution :
\[\eta =1-\frac{{{T}_{2}}}{{{T}_{1}}}\]Þ\[\frac{1}{2}=1-\frac{500}{{{T}_{1}}}\]Þ \[\frac{500}{{{T}_{1}}}=\frac{1}{2}\] ?..(i) \[\frac{60}{100}=1-\frac{{{T}_{2}}'}{{{T}_{1}}}\]Þ\[\frac{{{T}_{2}}'}{{{T}_{1}}}=\frac{2}{5}\] ?..(ii) Dividing equation (i) by (ii), \[\frac{500}{{{T}_{2}}'}=\frac{5}{4}\]Þ\[{{T}_{2}}=400K\]You need to login to perform this action.
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