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A sonometer wire of length 1.5 m is made of steel. the tension in it produce an elastic strain of 1%.What is the fundamental frequency of steel if density and elasticity of steel are 7.7x10^3 kg/m^3 and 2.2x10^11 N/m^2 respectively

Answer is 178.2Hz.

Plz help to solved out it in simple language

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