Efficiency of Carnot engine is 100 % if - Vidyadip

MCQ

Efficiency of Carnot engine is $100 \%$ if

A
$T_2=273 K$
✓
$T_2=0 \mathrm{~K}$
C
$T_1=273 K$
D
$T_1=0 \mathrm{~K}$

✓

Answer

Correct option: B.

$T_2=0 \mathrm{~K}$

$ \eta=1-\frac{T_2}{T_1}$ for $100$ efficiency $(\eta=1)$ which gives $(T=0\mathrm{~K})$

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