JEE PHYSICS MCQ: THERMODYNAMICS

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Application +4 | -1

A Carnot engine with its cold body at

17^{\circ} \mathrm{C}

has

50 \%

efficiency. If the temperature of its hot body is now increased by

145^{\circ} \mathrm{C}

, the efficiency becomes

View answer and explanation

Correct option: B

60 \%

Option B (

60 \%

) is correct because increasing the hot reservoir temperature increases the Carnot efficiency.

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