Two discs of same moment of inertia rotating about their regular axis passing through - centre and perpendicular to the plane of disc with angular velocities omega_(1) and omega_(2). They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is

Two discs of same moment of inertia rotating about their regular axis

1.	Two discs of same moment of inertia rotating about their regular axis passing through - centre and perpendicular to the plane of disc with angular velocities omega_(1) and omega_(2). They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is
Answer» `(I)/(8)(omega_(1)-omega_(2))^(2)` `(1)/(2)I(omega_(1)+omega_(2))^(2)` `(1)/(4)I(omega_(1)-omega_(2))^(2)` `I(omega_(1)-omega_(2))^(2)` ANSWER :C