Sound wave travel at 350 m/s through a warm air and at 3500 m/s through brass. The wavelength of a 700 Hz acoustic wave as it enters brass from warm air
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velocity v = f * λ
frequency f remains same in air or brass, for the acoustic waves.
In brass, f = 700 Hz v = 3500 m/s wavelength = 3500/700=5 m
in air, v = 350 m/s wavelength = 350/700 = 1/2 meter
so wavelength becomes 10 times as waves enter brass from air.
frequency f remains same in air or brass, for the acoustic waves.
In brass, f = 700 Hz v = 3500 m/s wavelength = 3500/700=5 m
in air, v = 350 m/s wavelength = 350/700 = 1/2 meter
so wavelength becomes 10 times as waves enter brass from air.
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