Match List I and List II in case of uniform circular motion

	List-I		List-II
(a)	Changes only in direction	(i)	external torque
(b)	Zero magnitude	(ii)	angular momentum
(c)	acts along axis of rotation	(iii)	Kinetic energy
(d)	non-zero and  constant (having no direction)	(iv)	linear momentum

	(a)	(b)	(c)	(d)
(1)	i	iv	ii	iii
(2)	i	iv	iii	ii
(3)	iv	ii	i	iii
(4)	iv	i	ii	iii

In case of uniform circular motion, 

The net external torque on the body will be zero since angular velocity is constant and angular acceleration is zero. 

The linear momentum of the body will change only in direction because the magnitude of linear velocity does not change not does the mass of the body. 

Angular momentum of the body will be along the axis of rotation. 

Kinetic energy will be constant because of constant speed and kinetic energy won't have any direction.