1. Wave motion is due to the repartee periodic motion of the particles of the medium about their mean position.
2.It is necessary that the medium should possess elasticity and
3.All the particles of the medium do not receive the disturbance
at the same instant (i.e) each particle begins to vibrate a little later
than its predecessor.
4.The wave velocity is different from the particle velocity. The
velocity of a wave is constant for a given medium, whereas the velocity
of the particles goes on changing and it becomes maximum in their
mean position and zero in their extreme positions.
5.During the propagation of wave motion, there is transfer of
energy from one particle to another without any actual transfer of the
particles of the medium.
6.The waves undergo reflection, refraction, diffraction and