Multiple choice

The maximum shear stress in a solid shaft of circular cross section having diameter subjected to a torque T is $\tau$ . If the torque is increased by four times and the diameter of the shaft is increased by two times, the maximum shear stress in the shaft will be

  1. $2\tau$
  2. $\tau$
  3. $\dfrac{\tau}{2}$
  4. $\dfrac{\tau}{4}$
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C Correct answer
Explanation

 

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