1. A source and an observer are at rest on the earth but a strong wind is blowing over them. Is there a Doppler effect?
When the source and observer are moving in the same direction, the apparent frequency is given by
n’=n (
(V+W)Vs
Where, Vo is the velocity of the observer
Vs is the velocity of the source
W is the velocity of the wind blowing in the same direction.
If the source and observer are at rest i.e.Vo=Vs=0
n’=n
There would be no Doppler shift in frequency because the wind is moving with the same velocity relative to both the observer and source. Notice...
