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AP EAMCET201726 Apr 2017Evening ShiftPhysicsMechanical Properties of SolidsActual

One end of a steel wire of radius ' r ' is fixed to a ceiling and a load of 3 ~kg is attached to the free end of the wire. Another wire made of copper of radius ' 2 r ' is attached to the bottom of 3 ~kg load and a 2 ~kg load is attached to the free end of the copper wire. The ratio of longitudinal strains produced in copper and steel wires is (Young modulus of steel =20 10¹⁰ Nm ⁻² ) (Young modulus of copper =12 10¹⁰

Options

  1. A6: 1
  2. B1: 6
  3. C2: 3
  4. D3: 2

Correct answer

B. 1: 6

Step-by-step solution

No solution. Refer to answer key.

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