Pure Rotation

Assertion: A ball is released on a rough ground in the condition shown in figure. it will start pure rolling after some time towards left side. Reason: Friction will convert the pure rotational motion of the ball into pure rolling

Assertion: A ball is released on a rough ground in the condition shown in figure. it will start pure rolling after some time towards left side. Reason: Friction will convert the pure rotational motion of the ball into pure rolling

Assertion : Speed of any point on rigid body executing rolling motion can be calculated by expression v =r omega , where r is distance of point from instantaneous centre of rotation Reason : Rolling motion of rigid body can be considered as a pure rotation about instantaneous centre of rotation.

Assertion : Speed of any point on rigid body executing rolling motion can be calculated by expression v =r omega , where r is distance of point from intantaneous centre of rotation Reason : Rolling motion of rigid body can be considered as a pure rotation about instantaneous centre of rotation.

A couple produces: a) purely translational motion b) purely rotational motion c) both translational and rotational motion d) no motion

The specific rotation of a pure enantiomer is +16^@ . The observed rotation, if it is isolated from a reaction with 25% racemisation and 75% inversion is

The specific rotation of a pure enantiomer is +16^@ . The observed rotation, if it is isolated from a reaction with 25% racemisation and 75% inversion is

The specific rotation of a pure enantiomer is +10^(@) . The observed rotation, if it is isolated from a reaction with 30% recemisation and 70% inversion is

The specific rotation of a pure enantiomer is +10^(@) . The observed rotation, if it is isolated from a reaction with 30% recemisation and 70% inversion is