Simple Harmonic Motion and Waves
The force that pulls the mass towards mean position is called
Gravitational force
Frictional force
Torque
Restoring force
Restoring force
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The number of vibrations of a body in one sec is calledA. frequency
B. amplitude
C. time period
D. vibration
A human ear can oscillate back and forth up to
A. 18,000 times per second
B. 200 times per second
C. 20,000 times per second
D. 100 times per second
If the spring is stretched or compressed through a small displacement x from its mean position, then on mass it exerts a
A. strain
B. stress
C. energy
D. force
Time taken by a body to complete one vibration is
A. amplitude
B. frequency
C. time period
D. vibration
Heatwaves are
A. electromagnetic
B. mechanical
C. transverse
D. chemical waves
If 160 waves pass through a point of a medium in 40 seconds. Its frequency is
A. 4 Hz
B. 2 Hz
C. 5 Hz
D. 3 Hz
The categories of waves are
A. 3
B. 4
C. 2
D. 5
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