1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
For which combination of working temperatures, the efficiency of Carnot's engine is the least?
A
$100 \mathrm{~K}, 80 \mathrm{~K}$
B
$40 \mathrm{~K}, 20 \mathrm{~K}$
C
$80 \mathrm{~K}, 60 \mathrm{~K}$
D
$60 \mathrm{~K}, 40 \mathrm{~K}$
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The mean energy of a molecule of an ideal gas is
A
$\frac{1}{2} K T$
B
$2 K T$
C
$K T$
D
$\frac{3}{2} K T$
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