A) 0.1 m/s
B) 10 m/s
C) 100 m/s
D) 1000 m/s
Correct Answer: D
Solution :
Key Idea: The standard wave equation is \[y=a\sin \,(\omega t-kx)\] The given wave equation is \[y=a\sin \,\left( 100t-\frac{x}{10} \right)\] Compare it with the standard wave equation, we obtain \[\omega =100,\,k=\frac{1}{10}\] Velocity of the wave, \[v=\frac{\omega }{k}=\frac{100}{\frac{1}{10}}=100\times 10=1000\,m/s\]You need to login to perform this action.
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