A) 100 J
B) 1 J
C) 90 J
D) 99 J
Correct Answer: C
Solution :
\[\beta =\frac{1-\eta }{\eta }\] \[=\frac{1-\frac{1}{10}}{\frac{1}{10}}=\frac{\frac{9}{10}}{\frac{1}{10}}\] \[\beta =9\] \[\beta =\frac{{{Q}_{2}}}{W}\] \[{{Q}_{2}}=9\times 10=90\,J\]
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