A circular shaft subjected to torsion undergoes a twist of 1 in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be

A circular shaft subjected to torsion undergoes a twist of 1 in a len

1.	A circular shaft subjected to torsion undergoes a twist of 1 in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be
A.	/18
B.	18/
C.	/27
D.	27/
Answer» E.