A) amplitude of wave is less than \[\frac{\lambda }{2\pi }\]
B) amplitude of wave is greater than\[\frac{\lambda }{2\pi }\]
C) amplitude of wave is less than \[\lambda \]
D) amplitude of wave is greater than\[\frac{\lambda }{\pi }\]
Correct Answer: A
Solution :
[a] \[{{v}_{p}}<v\] or \[\omega A<f\lambda \] or\[A<\frac{f\lambda }{\omega }\] or \[\frac{\lambda }{2\pi }\]
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