There are three sources of sound of equal intensities with frequencies $101, 103$ and $106\, Hz$. What is the beat frequency heard if all are sounded simultaneously ... $Hz$?
Diffcult
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$\frac{1}{2}$ $\frac{2}{2}$
$\frac{1}{3}$ $\frac{2}{3}$ $\frac{3}{3}$
$\frac{1}{5}$ $\frac{2}{5}$ $\frac{3}{5}$ $\frac{4}{5}$ $\frac{5}{5}$
Eliminate common time instants. Total Maxima in one second $2+2+4=8$
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