1
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the amplitude of linear S.H.M. is decreased then

A
its period and total energy will increase.
B
its period will increase and total energy will decrease
C
its period and total energy will decrease.
D
its period will not change but total energy will decrease
2
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A child is sitting on a swing which performs S.H.M. It has minimum and maximum heights from ground $$0.75 \mathrm{~cm}$$ and $$2 \mathrm{~m}$$ respectively. Its maximum speed will be $$\left[\mathrm{g}=10 \frac{\mathrm{m}}{\mathrm{s}^2}\right]$$

A
$$\sqrt{1.25} \mathrm{~m} / \mathrm{s}$$
B
$$\sqrt{12.5} \mathrm{~m} / \mathrm{s}$$
C
$$5 \mathrm{~m} / \mathrm{s}$$
D
$$25 \mathrm{~m} / \mathrm{s}$$
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A pendulum clock is running fast. To correct its time, we should

A
reduce the mass of the bob.
B
reduce the amplitude of oscillation.
C
increase the length of the pendulum.
D
reduce the length of the pendulum.
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A particle is performing S.H.M. with maximum velocity '$$v$$'. If the amplitude is tripled and periodic time is doubled then maximum velocity will be

A
$$1.5 \mathrm{~v}$$
B
$$3 \mathrm{~v}$$
C
$$2 \mathrm{~v}$$
D
$$\mathrm{v}$$
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