Identify the correct order in which the values of M.I. decreases for the following
i) M.I. of solid sphere of mass 'M' and radius 'R' about its diameter of rotation
ii) M.I. of uniform ring of mass 'M' and radius 'R' about its tangent perpendicular to its plane
iii) M.I. of uniform disc of mass 'M' and radius 'R' about its diameter
iv) M.I of a uniform solid cylinder of mass M about its own axis of rotation

Question

Infinity Learn · Accepted Answer

For the sphere, $$I1$$ $$=$$ $$2/5$$ $$MR2For$$ the ring, $$I2$$ $$=$$ $$MR2$$ $$+$$ $$MR2$$ $$=$$ $$2MR2For$$ the disc, $$I3$$ $$=$$ $$1/4$$ $$mR2For$$ the cylinder, $$I4$$ $$=$$ $$1/2$$ $$MR2$$∴ $$I2$$ > $$I4$$ > $$I1$$ > $$I3So$$, option $$-(3)$$ is correct.

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