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MHT CET202015 Oct 2020Morning ShiftPhysicsMechanical Properties of SolidsActual

A transverse wave is travelling with velocity ' V ^ through a metal wire of length ' L ' and density ' '. The tensile stress in the wire is

Options

  1. AV ²
  2. Bv ²
  3. CV ²
  4. D~V ²

Correct answer

D. ~V ²

Step-by-step solution

V = T m where T is the tension and m is mass per unit length. m = A . p where A is an area of cross-section. V= T A V²= T A T A =V²

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