Equation of a progressive wave is y=2sinπ(x18−t10), where x and y are in cm. Then ratio of maximum particle velocity to the velocity of propagation is
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a
π:4
b
π:9
c
π:6
d
π:3
answer is B.
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Detailed Solution
Maximum particle velocity, umax=ω.AVelocity of propagation, V=ωK∴ umaxV=ωAωK=KA=π18×2=π9