Question

Draw displacement-time graph of a wave and show on it the amplitude and time period of wave.

Answer 1

Displacement-time graph:

• The displacement-time graph shows the variation of displacement with time for a particle of the medium at a given position.
• The time taken by the particle to travel between any two consecutive crests or troughs marks the time period $T$.
• The maximum displacement of the particle of medium on either side of its mean position $(y=0)$ , is marked as amplitude “$a$”.