Physics · 2020
JEE Main · 2 September 2020, Shift 2 · Q8
A heat engine is involved with exchange of heat of 1915 J, -40 J, +125 J and -QJ, during one cycle achieving an efficiency of 50.0 %. The value of Q…
A heat engine is involved with exchange of heat of $\displaystyle 1915$ J, -$\displaystyle 40$ J, +$\displaystyle 125$ J and -QJ, during one cycle achieving an efficiency of $\displaystyle 50.0 \%$. The value of Q is :
Official answer
(4)
$\displaystyle 980$ J
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.