The waves in which particles of the medium vibrate
perpendicular to the direction of waves are:
Diffraction of wave can be observed clearly only when the
size of slit or obstacle is nearly ………. To the wavelength of the wave:
In simple harmonic motion, the acceleration of the body
is…………. Proportional to the displacement.
The value of acceleration is simple harmonic motion at mean
position is:
The oscillations of a system in the presence of which force
are called damp oscillations:
the motion in which the friction reduces the mechanical
energy of the system as time passes and the amplitude of motion reduces is
called:
The displacement produced in the spring is directly
proportional to force is called:
