A) 180 Hz
B) 45 Hz
C) 120 Hz
D) 90 Hz
Correct Answer: A
Solution :
\[\lambda =2\,\,d=2\,\,m\] \[v=\frac{v}{\lambda }=\frac{360\,\,m{{s}^{-1}}}{2\,\,m}=180\,\,Hz\] Reason: As it can be understood from the figure, distance between successive compressions and rarefactions is one half of the wavelength.You need to login to perform this action.
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