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If the two frequencies are nearly equal,...

If the two frequencies are nearly equal, find the beat frequency .

Text Solution

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Let ` omega_(1) = 2 pi n_(1) and omega _(2) = 2 pi n_(2) , where n_(1) and n_(2) ` are two nearly equal frequencles.
` :. N_(1) = (omega_(1))/(2pi) and n_(2) = (omega_(2))/(2pi)`
So, beat frequency
` = n_(1)~ n_(2) = (omega_(1))/(2pi) ~(omega_(2))/(2pi) = (1)/(2pi) (omega_(1) ~omega_(2))`
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