Question

$\huge \rm \red{Question}$​

Answer 1

Answer:

a person can hear range from 25 to 20 kilo the wavelength is in this was the amplitude upon time so we find to amplitude

Answer 2

Answer:

Solution:-

For a sound wave,

$\sf \pink{Speed = Wavelength \ x \ Frequency}$

ν = λ x f

Given that the speed of sound in air = 344 m/s

(i) For, f = 20 Hz

λ1= $\dfrac{v}{f}$

λ1 = $\dfrac{344}{20}$

$\bf\color{magenta}{λ1 = 17.2 m}$

(ii) For, f= 20000 Hz

λ2= $\dfrac{v}{f}$

λ2= $\dfrac{344}{2000}$

$\bf\color{magenta}{λ2= 0.172 m}$

Hence, for humans, the wavelength range for hearing is 0.0172 m to 17.2 m..