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A transverse wave of amplitude 2 m, wave...

A transverse wave of amplitude 2 m, wavelength 4 m and frequency 6 Hz is propagating in a string toward positive y-direction. The equation of the wave may be (y is in m and t is in s)

A

`[X = 2 sin (0.5 pi y + 12pi t)]` m

B

`[X = 2 sin (pi y - 6pi t)]` m

C

`[X = 2 sin (pi y + 6pi t)]` m

D

`[X = 2 sin (0.5 pi y - 12pi t)]` m

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