(9) If solid sphere and solid cylinder of same mass and density rotate about their own axes, the moment of inertia will be greater for:
(a) Solid sphere
(b) Solid cylinder
(c) The one that has the largest mass arrives first
(d) The one that has the largest radius arrives first
Solution: We know that
For sphere, moment of inertia is

For cylinder, moment of inertia is

Divide (2) by (1)


Therefore, moment of inertia of cylinder is greater than the moment of inertia of the sphere.
It so better. The easiest way to learn about the concept and basic of the MCQS
Arifullah
Thank you.
Pingback:Numerical Problems on Rotatory and Circular Motion, Physics Grade 11 – msa
Pingback:Numerical Problem 1, Rotatory and Circular Motion, Physics 11 – msa
Pingback:To calculate angular speed of the wheel of a car – msa
Pingback:Physics 11 (New Course) – msa