Choose the correct option? A tuning for...

Choose the correct option?
A tuning fork vibrates and produces concentric circular transverse waves on the surface of water. If distance between 10 crests is 9.0 m and velocity of wave on the surface of water is 450 `m//s`, then frequency of the tuning fork is
A. 500 Hz
B. 250 Hz
C. 225 Hz
D. 450 Hz

500 Hz

450 Hz

250 Hz

2250Hz

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