A) 1
B) 2
C) 4
D) 8
Correct Answer: C
Solution :
Velocity of wave \[v=n\lambda \]where n = frequency of wave \[\Rightarrow n=\frac{v}{\lambda }\] \[{{n}_{1}}=\frac{{{v}_{1}}}{{{\lambda }_{1}}}=\frac{396}{99\times {{10}^{-2}}}=400Hz\] \[{{n}_{2}}=\frac{{{v}_{2}}}{{{\lambda }_{2}}}=\frac{396}{100\times {{10}^{-2}}}=396Hz\] No. of beats\[={{n}_{1}}-{{n}_{2}}=4\]You need to login to perform this action.
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