Question

How much time (as a fraction of the period T) does it required for a wave’s crest (maximum) to reach the position where the trough (minimum) was at t = 0?

Answer 1

`(T)/(4)`

Step-by-step explanation:

From the billow figure the wave required T time to complete the length
`\lambda`

Now from the figure it is clear that the length between the maximum crest and minimum crest is
`(\lambda )/(4)`

As the distance is decreases by 4 times so the time will alos decreases by 4 times

So the required time for a wave to reach from maximum crest to minimum crest is
`(T)/(4)`