A) 40
B) 30
C) 20
D) 10
Correct Answer: C
Solution :
Here \[\frac{\lambda }{2}=5.0\,cm\,\,\]\[\Rightarrow \lambda =10\]\[cm\] Hence \[n=\frac{v}{\lambda }=\frac{200}{10}=20\]Hz.You need to login to perform this action.
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