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Two sinusoidal waves having the same wav...

Two sinusoidal waves having the same wavlength of the wave, if the minimum time interval between two instance when the string becomes flat, is `0.8s` ?

A

10 m

B

5 m

C

8 m

D

2 m

Text Solution

Verified by Experts

The correct Answer is:
C
The minimum time interval , between two instants, when the string becomes flat is ` T/2`.
Thus ` T/2 = 0.8 x " " :. T = 1.6` s
` :. V = n lambda = lambda/T " " :. lambda = vT = 5 xx 1.6 = 8 m`
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