A sound is producing 1500 sound waves in 3 seconds if the distance covered by compressive and a adjacent rare fraction be 68 cm find frequency wavelength and velocity
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Answer :
Given
No of variations in 3 seconds = 1500
Finding Frequency
(A) No of frequency in 1 second = 1500/3 = 500
So , the frequency = 500
Finding wavelength
(B) we know that
The distance covered by compressive and a adjacent rare fraction be 68
Therefore wavelength = 68 cm
Finding velocity
(C) Velocity (v) = Frequency * Wavelength
= 500*68
= 34000 cm / sec
= 340 m/s
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