Question

A solid sphere and a hallow sphere of same mass and radius rotate about their diameter with same
K.E. If torques of equal magnitude are applied on them, the ratio of their angular displacement
before they are brought to rest is
1) 1:1
2) 3:5
3) 5:3
4) 2:3

Answer 1

Answer:

Let r and R be the radii of hollow sphere

∴Ratio=

1

1

=1:1

Hence, the option (A) is correct.