Question

This question is from 11 class and from chemistry : Describe the Doppler's effect??

Answer 1

$\huge \mathfrak {Answer:-}$

$\bold{Doppler\:effect}$ is the change in frequency of a wave, for an observer, moving relative to the source of the wave.

A common experience of doppler shift is, when a train sounding siren $\bold{approaches}$ and $\bold{recedes}$ an observer.

Thee frequency of the sound will be seem to be $\bold{high}$ as it approaches and low as it passes the observer.

$\huge{Be\:Brainly}$❤️