Oscillations and Periodic Motion, Periodic Functions,Simple Harmonic Motion and its Equation, Kinetic and potential Energies NEET Questions

Physics - Oscillations and Waves

Oscillations and Periodic Motion, Periodic Functions,Simple Harmonic Motion and its Equation, Kinetic and potential Energies MCQ Questions


7.
A simple pendulum has a time period of 2 s. The time taken to move from the mean position to one extreme position is:

NEET - 2017

A.
1 s
B.
0.5 s
C.
2 s
D.
4 s
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ANSWER :
B. 0.5 s
8.
What is the phase of the motion in SHM?
A.
ωt + φ
B.
Aωt
C.
A sin(ωt)
D.
ω/t
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ANSWER :
A. ωt + φ
9.
How does the velocity vary in SHM if displacement is x = A cos(ωt)?
A.
v = -Aω sin(ωt)
B.
v = Aω cos(ωt)
C.
v = Aω tan(ωt)
D.
v = Aω sec(ωt)
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ANSWER :
A. v = -Aω sin(ωt)
10.
Which function represents a periodic motion?
A.
sin(t)
B.
cos(t)
C.
t
D.
e^(-t)
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ANSWER :
A. sin(t)
11.
What is the unit of frequency in the SI system?
A.
Hertz (Hz)
B.
Newton (N)
C.
Joule (J)
D.
Second (s)
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ANSWER :
A. Hertz (Hz)
12.
The potential energy in SHM is maximum when:
A.
At mean position
B.
At extreme position
C.
At equilibrium position
D.
At any point
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ANSWER :
B. At extreme position