1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

The volume of a block of metal at $30^{\circ} \mathrm{C}$ changes by $0.12 \%$ when its temperature is increased to $70^{\circ} \mathrm{C}$. The coefficient of linear expansion of the metal is

A
$2 \times 10^{-5}{ }^{\circ} \mathrm{C}$
B
$3 \times 10^{-5}{ }^{\circ} \mathrm{C}$
C
$4 \times 10^{-5}{ }^{\circ} \mathrm{C}$
D
$1 \times 10^{-5}{ }^{\circ} \mathrm{C}$

2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

A fixed mass of gas at constant pressure occupies a volume ' $V$ '. The gas undergoes a rise in temperature so that the r.m.s. velocity of the molecule is doubled. The new volume will be

A
$\frac{\mathrm{V}}{2}$
B
$\frac{\mathrm{V}}{\sqrt{2}}$
C
2 V
D
4 V
MHT CET (Biology) Subjects
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