Question

sound waves of wavelength 3 cm have a velocity of 336 m/s in air .what is their frequency? can this sound be heard by the human ear ?

Answer 1

solu:- speed = wavelength × frequency
336 m/s = 3cm × frequency
frequency = 336/3
= 112 Hz yes, this sound can be heard by human ear this sound is audible sound, Human being can hear a (infrasonic sound) 20Hz upto 20,000Hz Range ......
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