1
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An ideal gas in a container of volume 500 c.c. is at a pressure of $$2 \times 10^{+5} \mathrm{~N} / \mathrm{m}^2$$. The average kinetic energy of each molecule is $$6 \times 10^{-21} \mathrm{~J}$$. The number of gas molecules in the container is

A
$$5 \times 10^{25}$$
B
$$5 \times 10^{23}$$
C
$$25 \times 10^{23}$$
D
$$2.5 \times 10^{22}$$
2
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A gas at N.T.P. is suddenly compressed to onefourth of its original volume. If $$\gamma=1.5$$, then the final pressure is

A
4 times
B
1.5 times
C
8 times
D
$$\frac{1}{4}$$ times
3
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle of mass '$$\mathrm{m}$$' moves along a circle of radius '$$r$$' with constant tangential acceleration. If K.E. of the particle is '$$E$$' by the end of third revolution after beginning of the motion, then magnitude of tangential acceleration is

A
$$\frac{\mathrm{E}}{2 \pi \mathrm{rm}}$$
B
$$\frac{\mathrm{E}}{6 \pi \mathrm{rm}}$$
C
$$\frac{\mathrm{E}}{8 \pi \mathrm{rm}}$$
D
$$\frac{\mathrm{E}}{4 \pi \mathrm{rm}}$$
4
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An e.m.f. $$E=4 \cos (1000 t)$$ volt is applied to an LR circuit of inductance $$3 \mathrm{~mH}$$ and resistance $$4 ~\Omega$$. The maximum current in the circuit is

A
$$\frac{4}{\sqrt{7}} \mathrm{~A}$$
B
$$1.0 \mathrm{~A}$$
C
$$\frac{4}{7} \mathrm{~A}$$
D
$$0.8 \mathrm{~A}$$
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