Question

A wave pulse on a string has the dimension shown in figure. The wave speed is v = 1 cm/s. If point O is a free end. The shape of wave at time t = 3 s is

Answer 1

Explanation:

Since velocity of the wave is 1cm/s, the peak of the wave will move 3cm in 3seconds.

So the shape of wave at time t=3s

Answer 2

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Since velocity of the wave is 1cm/s, the peak of the wave will move 3cm in 3seconds.So the shape of wave at time t=3s is given by D.