Given that sound travels in air at 340 m/s, find the wavelength of the waves in air produced by a 20kHz sound source. If the same source is put in a water tank, what would be the wavelength of the sound waves in water? Speed of sound in water = 1,480 m/s.
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Answered by
19
here is your answer ...
wavelength = velocity / frequency
hope it helps !!;
wavelength = velocity / frequency
hope it helps !!;
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Answered by
24
SPEED OF SOUND IN AIR : 340 m/s
FREQUENCY = 20khz = 20000hz
FORMULA= SPEED= DISTANCE/TIME = WAVELENGTH/TIME = WAVE LENGTH x FREQUENCY
BECAUSE FREQUENCY= 1/TIME
WAVE LENGTH= SPEED/FREQUENCY
=(340/20000)M=(34000/20000)CM=
1.7CM
SPEED OF SOUND IN WATER=1,480 m/s
speed=wave length x frequency
wave length= speed/frequency
=(1480/20000)m=(148000/20000)cm=
7.4cm
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