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In a solid, the speed of elastic longitudinal wave is 1.35ms -1. If the Young’s modulusofelasticity of the solid is 2X1011 N m-2× calculate its mass density.

ROHIT SHARMA , 6 Years ago
Grade 12th pass
anser 1 Answers
Eshan

Last Activity: 6 Years ago

Dear student,

Speed of longitudinal wave is given asv=\sqrt{\dfrac{Y}{\rho}}
\implies \rho=\dfrac{Y}{v^2}=\dfrac{2\times 10^{11}}{1.35^2}kg/m^3=11\times 10^{10}kg/m^3

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