The outside diameter of a hollow shaft is twice that of its inside diameter. The torque-carrying capacity of this shaft is M1. A solid shat of the same material has the diameter equal to the outside diameter of the hollow shaft. The solid shaft can carry a torque of M2. The ratio \(\frac{{{M_{1}}}}{{{M_{2}}}}\) is

The outside diameter of a hollow shaft is twice that of its inside dia

1.	The outside diameter of a hollow shaft is twice that of its inside diameter. The torque-carrying capacity of this shaft is M1. A solid shat of the same material has the diameter equal to the outside diameter of the hollow shaft. The solid shaft can carry a torque of M2. The ratio \(\frac{{{M_{1}}}}{{{M_{2}}}}\) is
A.	15/16
B.	3/4
C.	1/2
D.	1/16
Answer» B. 3/4