A) \[\operatorname{v} = 5 cm\]
B) \[\lambda =18cm\]
C) \[a= 0.04 cm\]
D) \[f=50\,\,Hz\]
Correct Answer: B
Solution :
The standard equation of a progressive wave is \[y=a\,\sin \,\left[ 2\pi \left( \frac{t}{T}-\frac{x}{\lambda } \right)+\phi \right]\] The given equation can be written as \[y=\,\,4\,\,\sin \,\left[ 2\pi \left( \frac{t}{10}-\frac{x}{18} \right)+\frac{\pi }{6} \right]\] Comparing with standard equation we have, \[\operatorname{a} = 4 cm,\,\,T= 10 s, \lambda =18 cm and \phi \,\,=\,\,\frac{\pi }{6}\]You need to login to perform this action.
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