A) 10 m/s
B) 20 m/s
C) 200 m/s
D) 400 m/s
Correct Answer: B
Solution :
Given, \[y=0.5\sin \,(20x-400\,t)\] Comparing with \[y=a\sin (\omega t-kx)\] Gives velocity of wave \[v=\frac{\omega }{k}\]\[=\frac{400}{20}=20\,m/s.\]You need to login to perform this action.
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