For a simple pendulu,m the restoring force is caused by:
A. Gravity
B. Spring
C. Hand
D. All of these
Displacement of the body in S.H.M is equal to amplitude when the body is at:
A. Mean position
B. Elsewhere
C. Extreme position
D. None
The projection of the particle moving in a circle with non-uniform speed executes:
A. S.H.M
B. Vibratory motion
C. Both B and D
D. None S.H.M
The velocity of the mass attached to a spring is maximum at:
A. Mean position
B. Extreme position
C. Both A and B
D. None
The mass attached to a spring executes:
A. Vibratory motion
B. Rotatory motion
C. S.H.M
D. Both A and C
Forced vibration is known as:
A. Simple harmonic vibration
B. Natural vibration
C. Driven harmonic vibration
D. Free vibration
In damped harmonic oscillation which one decreases:
A. Amplitude of vibration
B. Energy of vibration
C. Both amplitude and energy
D. Neither amplitude nor energy
When K.E energy of SHM is maximum its:
A. P.E is zero
B. Acceleration is zero
C. Restoring force is zero
D. All P.E acceleration and restoring force are zer
Electrical resonance is observed in:
A. Radio
B. Microwave oven
C. Both in radio and microwave oven
D. Neither in radio nor in a microwave oven
The natural frequency of simple pendulum depends upon:
A. It’s mass
B. It’s length
C. Square of its length
D. The square root of its length
