A) 92m/s
B) 200 m/s
C) 100m/s
D) 332m/s
Correct Answer: B
Solution :
[b] Standard equation \[y(x,t)=A\cos \left( \frac{\omega }{V}x-\omega t \right)\] From any of the displacement equation Say \[{{y}_{1}}\] \[\frac{\omega }{V}=0.50\pi \] and \[\omega =100\pi \] \[\therefore \,\,\frac{100\pi }{V}=0.5\pi \] \[\therefore \,\,V=\frac{100\pi }{0.5\pi }=200m/s\]You need to login to perform this action.
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