For a two rotor system, the mass moment of inertia of one shaft(A) is twice the other(B), then what is the relation between the length of the shafts.

For a two rotor system, the mass moment of inertia of one shaft(A) is

1.	For a two rotor system, the mass moment of inertia of one shaft(A) is twice the other(B), then what is the relation between the length of the shafts.
A.	2L(A) = L(B)
B.	L(A) = 2L(B)
C.	L(A) = L(B)
D.	2L(A) = 3L(B)
Answer» B. L(A) = 2L(B)