Calculate the velocity of sound in a gas...

Calculate the velocity of sound in a gas in which two waves of wavelength 50 cm and 50.5cm, produce 6 beats per second.

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`n_(1)`, frequency of the first wave ` = c//0.500` ,brgt `n_(2)` , frequency of the second wave `= c//0.505`
Obviously `n_(1) gt n_(2) :. n_(1) - n_(2) = 6`
or ` ( c) /(0.500) - ( c)/( 0.505) = 6 or c = 303 m//s`

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