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Under what conditions there will be no D...

Under what conditions there will be no Doppler effect or no change in frequency despite the motion of source and/or observer.

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To determine the conditions under which there will be no Doppler effect or no change in frequency despite the motion of the source and/or observer, we can analyze the situation step by step. ### Step-by-Step Solution: 1. **Understanding Doppler Effect**: The Doppler effect refers to the change in frequency (or wavelength) of a wave in relation to an observer who is moving relative to the wave source. It is important to identify when this effect does not occur. 2. **Condition 1 - Circular Motion**: - Consider a scenario where the source of sound is stationary at the center of a circle, and the observer is moving in a circular path around the source. ...
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A : Doppler's effect in sound is asymmetric but in light , it is symmetric R : In Sound , change in frequency depends on the individual velocity of both the source as well as the observer . In light , change in frequency depends on the relative velocity between source and observer .

The change in frequency due to Doppler effect does not depend on

(A) Source motion effects the wavelength but observer motion effects the number of waves received by him (B) The apparent change in frequency depends on the distance between source and observer (C) The echo and the direct note differ both in speed and intensity The correct statements are

Dopper's effect is sound in addition of relative velocity between source and observer, also depends while source and observer or both are moving. Doppler effecct in light depennd only on the relative velocity of source and observer. The reason of this is

Does the Doppler effect increase the intensity of wave when its source approaches the observer?

A : In Doppler's effect the value of apparent frequency depends on the relative motion between source and observer . R : The change in frequency in Doppler effect is independent from the distance between source and observer .

Statement(A): The reflection of sound from an extended object is echo Statement(B): The super position of waves of same frequency is beats Statement(C): The apparent change in frequency of source of sound due to relative motion between source and observer is Doppler effect Statement(D): The super position of wave of slightly differ in frequency is stationary waves