1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a monoatomic gas, the work done at constant pressure is '$$\mathrm{W}$$' The heat supplied at constant volume for the same rise in temperature of the gas is

$$[\gamma=\frac{C_p}{C_v}=\frac{5}{2}$$ for monoatomic gas]

A
$$2 \mathrm{~W}$$
B
$$\mathrm{W}$$
C
$$\frac{W}{2}$$
D
$$\frac{3 W}{2}$$
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A thin metal disc of radius 'r' floats on water surface and bends the surface downwards along the perimeter making an angle '$$\theta$$' with the vertical edge of the dsic. If the weight of water displaced by the disc is '$$\mathrm{W}$$', the weight of the metal disc is [T = surface tension of water]

A
$$2 \pi \mathrm{r} \cos \theta+W$$
B
$$\mathrm{W}-2 \pi \mathrm{T} \cos \theta$$
C
$$\mathrm{2 \pi r T+W}$$
D
$$2 \pi \mathrm{T} \cos \theta-\mathrm{W}$$
3
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle performing linear S.H.M. of amplitude $$0.1 \mathrm{~m}$$ has displacement $$0.02 \mathrm{~m}$$ and acceleration $$0.5 \mathrm{~m} / \mathrm{s}^2$$. The maximum velocity of the particle in $$\mathrm{m} / \mathrm{s}$$ is

A
0.05
B
0.50
C
0.01
D
0.25
4
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The electric field intensity on the surface of a charged solid sphere of radius '$$r$$' and volume charge dentiy '$$\rho$$' is given by ($$\epsilon_0=$$ permittivity of free space)

A
zero
B
$$\frac{\sigma \pi}{3 \epsilon_0}$$
C
$$\frac{1}{4 \pi \epsilon_0} \frac{\sigma}{r}$$
D
$$\frac{5 \pi}{6 \epsilon_0}$$
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