Question

Hello friends.... answer please

Answer 1

Hello friends

____________________________


Let's write the given values..

Given:

Wavelength = 1 cm = 1 x 10^-2m.

Velocity of Sound= 340m/s

We have to find the frequency =?

We know that,

Velocity = frequency x Wavelength

Frequency = velocity/wavelength


By putting the given values we get,


Frequency = velocity/Wavelength

frequency = 340/1 x 10^-2

frequency = 340 x 10^2

frequency = 34000 Hz.


This frequency is higher than 20000 Hz and therefore,this sound cannot be heard by the human ear.



Thanks...

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