An elastic wave generates a stress of magnitude N while propagating in a wire. The relation between its frequency and the wavevector k is given by = ₀ 1- k a , where ₀ iand a are constants. In the long wavelength approximation ( a) , the li

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An elastic wave generates a stress of magnitude N while propagating in a wire. The relation between its frequency and the wavevector k is given by = ₀ 1- k a , where ₀ iand a are constants. In the long wavelength approximation ( a) , the linear density of the wire is

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Correct answer: C. 2 N / ( ₀ a )^2

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An elastic wave generates a stress of magnitude N while propagating in a wire. The relation between its frequency and the wavevector k is given by = ₀ 1- k a , where ₀ iand a are constants. In the long wavelength approximation ( a) , the linear density of the wire is

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