A) \[180\,Hz\]
B) \[45\,Hz\]
C) \[120\,Hz\]
D) \[90\,Hz\]
Correct Answer: A
Solution :
From formula \[U=n\lambda \] Here, \[\lambda =2d=2m,\,\,V=360m{{s}^{-1}}\] Because distance between successive compression and refraction is one half of the wavelength. \[h=\frac{V}{\lambda }=\frac{360}{2}=180\,Hz.\]You need to login to perform this action.
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