Question
Question: A solid sphere and a hollow sphere of the same material and of a same size can be distinguished with...
A solid sphere and a hollow sphere of the same material and of a same size can be distinguished without weighing:
A
By determining their moments io inertia about their coaxial axes
B
By rolling them simultaneously on an inclined plane
C
By rotating them aout a common axis of rotation
D
By aplying equal torque on them
Answer
By rolling them simultaneously on an inclined plane
Explanation
Solution
Time f descent will be less for solid sphere i.e. solid sphere will reach first at the bottom of inclined plane.