Question

What are stationary waves?

Answer 1

a standing wave – also known as a stationary wave – is a wave in a medium in which each point on the axis of the wave has an associated constant amplitude. The locations at which the amplitude is minimum are called nodes, and the locations where the amplitude is maximum are called antinodes.

Answer 2

when the two waves of equal amplitude and equal speed travel along the same path in the opposite direction are called stationary waves