A) 1
B) 0
C) 6
D) 12
Correct Answer: C
Solution :
As, \[frequency\,\,\text{=}\,\,\frac{velocity}{wavelength}\] Frequency of wave having wavelength 5 m \[{{v}_{1}}=\frac{330}{5}=66\,Hz\] Frequency of wave having wavelength 5.5 m \[{{v}_{2}}\,\,=\,\,\frac{330}{5.5}=60\,Hz\] \[\therefore \] Number of beats per second \[= {{v}_{1}}- {{v}_{2}} = 66 - 60 = 6\]You need to login to perform this action.
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