A) 360
B) 180
C) 3
D) 60
Correct Answer: B
Solution :
From the given equations of progressive waves \[{{\omega }_{1}}=500\pi \] and \[{{\omega }_{2}}=506\pi \] \ \[{{n}_{1}}=250\] and \[{{n}_{2}}=253\] So beat frequency \[={{n}_{2}}-{{n}_{1}}=253-250=3\] beats per sec \ Number of beats per min = 180.You need to login to perform this action.
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