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The equation of a stationary wave is given by `y=6sin(pi)//(x)cos40pit` Where `y` and `x` are given in cm and time `t` in second. Then the amplitude o

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The equation of a stationary wave is given by
`y=6sin(pi)//(x)cos40pit` Where `y` and `x` are given in cm and time `t` in second. Then the amplitude of progressive wave is
A. 3cm
B. 6cm
C. 12cm
D. 2cm
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1 Answer

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Correct Answer - A
`2A = 6 therefore A=3cm`
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