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A stretched rope having linear mass density 5 × $10^{- 2}$ kg/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 $\frac{2 \sqrt{2}}{15 π}$ m is

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answer is C.

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Detailed Solution

$P = \frac{1}{2} μ ω^{2} A^{2} v$ where $v = \sqrt{\frac{T}{μ}}$

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