A whistle ' $S$ ' of frequency $f$ revolves in a circle of radius $R$ at a constant speed $v$. What is the ratio of maximum and minimum frequency detected by a detector $D$ at rest at a distance $2 R$ from the center of circle as shown in figure? (take ' $c$ ' as speed of sound)
A whistle ' $S$ ' of frequency $f$ revolves in a circle of radius $R$ at a constant speed $v$. What is the ratio of maximum and minimum frequency detected by a detector $D$ at rest at a distance $2 R$ from the center of circle as shown in figure? (take ' $c$ ' as speed of sound)
- A
$\left(\frac{c+v}{c-v}\right)$
- B
$\sqrt{2}\left(\frac{c+v}{c-v}\right)$
- C
$\sqrt{2}$
- D
$\frac{(c+v)}{c \sqrt{2}}$
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