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AP EAMCET201724 Apr 2017Evening ShiftPhysicsMechanical Properties of SolidsActual

A 500 ~g ball is attached to one end of an aluminum wire of area of cross-section 0.5 ~mm ^2 and an unstretched length of 1.4 ~m . The other end of the wire is fixed to the top of a vertical pole. The ball rotates about the pole in a horizontal plane such that the angle between the wire and the horizontal is 30^ . The increase in the length of the wire is ____ mm . (Young's modulus of aluminum =0.7 10¹¹ Nm ⁻² and acc

Options

  1. A0.1
  2. B0.2
  3. C0.3
  4. D0.4

Correct answer

D. 0.4

Step-by-step solution

No solution. Refer to answer key.

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