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(d) 1 : √2
(b) Decrease
(a) 2
(b) 2 : 1
(a) Purely rotational motion
Two bodies have their moment of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio
(d) 1 : √2
(d) 1 : √2
See less. A person standing on a rotating disc stretches out his hands, the angular speed will
(b) Decrease
(b) Decrease
See lessTwo rings of radii R and nR made from the same wire have the ratio of moments of inertia about an axis passing through their centres equal to 1:8. The value of n is
(a) 2
(a) 2
See lessOne circular ring and one circular disc both having same mass and radius. The ratio of their moment of inertia about the axis passing through their centres and perpendicular to their planes will be
(b) 2 : 1
(b) 2 : 1
See lessA couple is acting on a two particle system. The resultant motion will be
(a) Purely rotational motion
(a) Purely rotational motion
See less