A stretched rope having linear mass density 5×10−2kg/m is under a tension of 80 N. The power that has to be supplied to the rope to generate harmonic waves at a frequency of 60 Hz and an amplitude of 2√215πm is
A
215 W
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B
251 W
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C
512 W
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D
521 W
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Solution
The correct option is C 512 W P=12μω2A2vwherev=√Tμ