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AP EAMCET202017 Sep 2020Morning ShiftPhysicsMechanical Properties of SolidsActual

(A 3 ~m ) long steel wire is stretched to increase its length by (0.3 ~cm ). Poisson's ratio for steel is 0.26 . The lateral strain produced in the wire is

Options

  1. A(0.26 10⁻⁴ )
  2. B(0.26 10⁻² )
  3. C(0.26 10⁻³ )
  4. D(0.26 10⁻¹ )

Correct answer

C. (0.26 10⁻³ )

Step-by-step solution

Length of steel wire, (l=3 ~m ) Increased length, ( l=0.3 ~cm =3 10⁻³ ~m ) Poisson's ratio (=0.26 ) ( Lateral strain Longitudinal strain =0.26 ) ( ) Lateral strain (=0.26 ) longitudinal strain ( aligned & =0.26 l l & =0.26 3 10⁻³ 3 =0.26 10⁻³ aligned )

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