a sound wave has frequency of 2khz and wavelenght of 35cm . If an observe is 1.4 kilo meter away from the source at what tym interval could the observer hear the sound
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f = 2khz = 2000Hz
lambda = 35cm = 0.35m
s = 1.4km = 1400m
v = f×lambda
= 2000×0.35
= 700m/s
T = D/S
= 1400/700
= 2seconds
lambda = 35cm = 0.35m
s = 1.4km = 1400m
v = f×lambda
= 2000×0.35
= 700m/s
T = D/S
= 1400/700
= 2seconds
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