What is fitted in telephone receiver:
Electromagnet
Diaphragm
Both a and b
None
The disturbance travelling in a medium is called:
Wave motion
Simple harmonic motion
the motion in which the friction reduces the mechanical energy of the system as time passes and the amplitude of motion reduces is called:
SHM
Random motion
Damped motion
Circulatory motion
The sound waves are the example of:
Longitudinal waves
Transverse waves
Electromagnetic waves
x-rays
