1
MHT CET 2023 10th May Evening Shift
+1
-0

An insulated container contains a monoatomic gas of molar mass '$$\mathrm{m}$$'. The container is moving with velocity '$$\mathrm{V}$$'. If it is stopped suddenly, the change in temperature of a gas is [R is gas constant]

A
$$\frac{\mathrm{MV}^2}{\mathrm{R}}$$
B
$$\frac{M V^2}{2 R}$$
C
$$\frac{\mathrm{MV}^2}{3 \mathrm{R}}$$
D
$$\frac{3 \mathrm{MV}^2}{2 \mathrm{R}}$$
2
MHT CET 2023 10th May Evening Shift
+1
-0

In a vessel, the ideal gas is at a pressure $$\mathrm{P}$$. If the mass of all the molecules is halved and their speed is doubled, then resultant pressure of the gas will be

A
$$4 \mathrm{P}$$
B
$$2 \mathrm{P}$$
C
$$\mathrm{P}$$
D
$$\frac{\mathrm{P}}{2}$$
3
MHT CET 2023 10th May Morning Shift
+1
-0

The average force applied on the walls of a closed container depends on $$T^x$$ where $$T$$ is the temperature of an ideal gas. The value of '$$x$$' is

A
4
B
3
C
2
D
1
4
MHT CET 2023 10th May Morning Shift
+1
-0

A black body radiates maximum energy at wavelength '$$\lambda$$' and its emissive power is $$\mathrm{E}$$. Now due to change in temperature of that body, it radiates maximum energy at wavelength $$\frac{2 \lambda}{3}$$. At that temperature emissive power is

A
$$\frac{51 \mathrm{E}}{8}$$
B
$$\frac{81 \mathrm{E}}{16}$$
C
$$\frac{61 E}{27}$$
D
$$\frac{71 \mathrm{E}}{19}$$
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