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The linear density of a string is 2xx10^...

The linear density of a string is `2xx10^(-2) kg/m. A transverse wave is propagating on the string and described by the equation y=5 sin (30 t-20x) where x and y are measured in m and t in sec. The tension in the wire is

A

0.12 N

B

0.045 N

C

0.45 N

D

0.09 N

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The correct Answer is:
B
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