A) \[v=\frac{v+u}{v}{{v}_{0}}\]
B) \[v=\frac{v-u}{v}{{v}_{0}}\]
C) \[v=\frac{v}{v+u}{{v}_{0}}\]
D) \[v=\frac{v+{{u}_{0}}}{v-{{u}_{s}}}{{v}_{0}}\]
Correct Answer: A
Solution :
The Dopplers effect in case of stationarysource and moving observer may be generalised as \[v=\left( \frac{v+u}{v} \right){{v}_{0}}\]where, v = speed of sound wave u = speed of observer with respect to medium
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