A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
Options
A. MS/3
B. MS/4
C. MS/5
D. none of these
Correct Answer
MS/5
More questions
1. The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)
A. molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition
B. molten metal is poured and allowed to solidify while the mould is revolving
C. molten metal is forced into mould under high pressure
