2 Types of waves according to direction

A wave can be transverse or longitudinal  depending on the direction of its oscillation/vibration.

• TRANSVERSE- occur when a disturbance creates oscillations perpendicular (at right angles) to the propagation (the direction of energy transfer)

• LONGIUDINAL- occur when the oscillations are parallel to the direction of propagation

> While mechanical waves can be both transverse and longitudinal, all electromagnetic waves are transverse.