Angle of twist of a solid shaft of torsional rigidity $G J$ , length $L$ and applied torque $T$ will be given by:

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SJVN ET Mechanical 2019 Official Paper

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Answer 1

Explanation:

We know that Torsion equation is:

$\frac{{{\tau _{max}}}}{R} = \frac{{G\theta }}{L} = \frac{T}{J}$

where θ is the angle of twist, T = torque applied, L = length of the shaft, J = polar moment of inertia, d = diameter of the shaft

$J = \frac{{\pi {d^4}}}{{32}}$

From torsion equation

$\theta = \frac{{TL}}{{GJ}}$