NEET 2018
For the following questions answer them individually
A solid sphereis) rotating freely about its symmetry axis in, free space. The radius of the sphere is imcreased keeping its mass same. Which of the following physical quantities would remain constant for the sphere ?
A body initially at rest and sliding along a frictionless track from a height h (as shown in Figure),just completes a vertical circle of diameter AB=D.The height h is equal to
Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass M and radius R. Theyall spin with the same angular speed about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation
A moving block having mass m, collides with another stationary block having mass 4m. The lighter blockycomesto rest after collision. When the initial velocity of the lighter block is v, then the value.of coefficient of restitution (e) will be
Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
