A source of frequency f is emitting sound waves. If temperature of the medium increases, then

Question

A source of frequency f is emitting sound waves. If temperature of the medium increases, then (A) wavelength of the sound wave increases (B) speed of the sound wave decreases (C) wavelength of the sound wave decreases (D) amplitude of the sound wave increases

Tardigrade Admin · Accepted Answer

Velocity of sound in an isentropic gaseous medium is given by

υ = \frac{γ RT}{m}

\Rightarrow υ \propto T

Also,

υ = f λ

\Rightarrow λ \propto T

Because frequency is a characteristics of source and it remains constant with change in temperature of medium.

Q. A source of frequency f is emitting sound waves. If temperature of the medium increases, then

wavelength of the sound wave increases

speed of the sound wave decreases

wavelength of the sound wave decreases

amplitude of the sound wave increases

Velocity of sound in an isentropic gaseous medium is given by υ=mγRT​​ ⇒υ∝T​ Also, υ=fλ ⇒λ∝T​ Because frequency is a characteristics of source and it remains constant with change in temperature of medium.

Q. A source of frequency $f$ is emitting sound waves. If temperature of the medium increases, then

Velocity of sound in an isentropic gaseous medium is given by
$υ = \frac{γ RT}{m}$
$\Rightarrow υ \propto T$
Also, $υ = f λ$
$\Rightarrow λ \propto T$
Because frequency is a characteristics of source and it remains constant with change in temperature of medium.