Physics · 2013
NEET 2013 · 18 May · Code Y · Q101
Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T_1 and rejects the heat to the sink at…
Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature $\displaystyle \mathrm{T}_1$ and rejects the heat to the sink at temperature T. The second engine B receives the heat at temperature T and rejects to its sink at temperature $\displaystyle \mathrm{T}_2$. For what value of T the efficiencies of the two engines are equal :
Official answer
(1)
$\displaystyle \sqrt{\mathrm{T}_1 \mathrm{~T}_2}$
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NEET (UG) 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.