1
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

According to the law of equipartition of energy the molar specific heat of a diatomic gas at constant volume where the molecule has one additional vibrational mode is

A
$\frac{9}{2} \mathrm{R}$
B
$\frac{5}{2} R$
C
$\frac{3}{2} R$
D
$\frac{7}{2} R$
2
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A carnot engine, whose efficiency is $40 \%$ takes heat from a source maintained at temperature 600 K . It is desired to have an efficiency $60 \%$, then the intake temperature for the same exhaust (sink) temperature should be

A
1800 K
B
1200 K
C
900 K
D
600 K
3
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two rods of same length \& material transfer a given amount of heat in 12 s when they are joined end to end. But when they are joined length wise parallel to each other they will transfer same amount of heat in same condition in time

A
24 s
B
3 s
C
1.5 s
D
48 s
4
MHT CET 2024 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An insulated container contains a monoatomic gas of molar mass ' $m$ '. The container is moving with velocity ' $V$ '. If it is stopped suddenly, the change in temperature is ( $R=$ gas constant)

A
$\frac{\mathrm{mV}^2}{5 \mathrm{R}}$
B
$\frac{\mathrm{mV}^2}{3 \mathrm{R}}$
C
$\frac{\mathrm{mV}^2}{7 \mathrm{R}}$
D
$\frac{m V^2}{9 R}$
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