This document discusses two types of waves: longitudinal waves and transverse waves. Longitudinal waves have particle displacement parallel to the direction of propagation, like sound waves. Transverse waves have particle displacement perpendicular to the direction of propagation, like light waves.

5. It is a propagation of disturbance that is
deviation from a state of rest or
equilibrium from place to place in a
regular and organized way.

6. -Longitudinal waves
-Transverse waves

7. In a longitudinal wave particle displacement is
parallel to the direction of wave propagating
Eg: Sound waves

8. In a transverse wave particle
displacement is perpendicular
to the direction of wave
propagation.
Eg: Light wave