Question

cases of doppler effect class 11 ncert
can anyone explain it in written?

Answer 1

Answer:

Case 1: Moving source, stationary observer (ESCMP)

Let us consider a source of sound waves with a constant frequency and amplitude. ... The sound source is the police car in the middle and is stationary. For the Doppler effect to take place (manifest), the source must be moving relative to the observer.

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Answer 2

Answer:

DOPPLER EFFECT

It is the change in frequency of a wave in relation with observer who is moving w.r.t to the wave source.

$\\ \\ \\ \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty \infty$

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