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A whistle is rotated with 2 rotations/sec in a circle of
\( \mathrm{P} \) radius 1 meter. A listener is sitting in the plane of circle outside the circle, then ratio of maximum and
W minimum frequencies heard by him will be: ( \( V \) is the velocity of sound)
(1) \( \frac{(V+4 \pi)}{(V-4 \pi)} \)
(2) \( \frac{(V+4 \pi)}{(V-2 \pi)} \)
(3) \( \frac{(V+2)}{(V-2)} \)
(4) \( \frac{(V+4)}{(V-4)} \)
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