Civil Engineering > GATE 2024 SET-1 > Torsion
A homogeneous shaft PQR with fixed supports at both ends is subjected to a torsional moment T at point Q, as shown in the figure. The polar moments of inertia of the portions PQ and QR of the shaft with circular cross-sections are J1 and J2, respectively. The torsional moment reactions at the supports P and R are TP and TR respectively. If TP / TR = 4 and J1 / J2 = 2, 
the ratio of the lengths L1 / L2 is _______.
Correct : b
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