A) \[{{10}^{4}}\,m/s\]
B) \[1\,m/s\]
C) \[{{10}^{-4}}\,m/s\]
D) Not derivable from above data
Correct Answer: A
Solution :
By comparing given equation with \[y=a\sin (\omega t)\cos kx\] Þ\[v=\frac{\omega }{k}=\frac{100}{0.01}={{10}^{4}}\]\[m/s\]
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