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Q.

What will be the wave velocity, if the radar gives 54 waves per min and wavelength of the given wave is 10 m

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a

4 m/sec

b

6 m/sec

c

9 m/sec

d

5 m/sec

answer is C.

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Detailed Solution

n=5460Hz, λ=10 m⇒v=nλ=9 m/s.
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