A place of cork is floating on water in a small tank. The cork oscillates up and down vertically when small ripples pass over the surface of water. The velocity of the ripples being `0.21 ms^(-1)`, wave length `15 mm`, and amplitude `5 mm`, the maximum velocity of the piece of cork is `(pi = (22)/(7))` A. `0.44 ms^(-1)`B. `0.24 ms^(-1)`C. `2.4 ms^(-1)`D. `4.4 ms^(-1)`

A place of cork is floating on water in a small tank. The cork oscilla

1.	A place of cork is floating on water in a small tank. The cork oscillates up and down vertically when small ripples pass over the surface of water. The velocity of the ripples being `0.21 ms^(-1)`, wave length `15 mm`, and amplitude `5 mm`, the maximum velocity of the piece of cork is `(pi = (22)/(7))` A. `0.44 ms^(-1)`B. `0.24 ms^(-1)`C. `2.4 ms^(-1)`D. `4.4 ms^(-1)`
Answer» Correct Answer - A `n = (V)/(lambda) - (.21)/(15 xx 10^(-3)) = (210)/(15)` `V_(max) = Aomega = 5 xx 10^(-3) xx (210)/(15) xx 2pi` `= 70 xx 2 xx (22)/(7) xx 10^(-3) = .44m//sec`.

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