Question

By keeping moment of inertia of a body constant, if we double the time period, then angular momentum of body
A.Remains constant
B.Doubles
C.Becomes half
D.Quadruples

Answer 1

Moment of inertia is that property where matter opposes a change in its condition of rotatory movement. For a body spinning around another, angular momentum relies upon the situation of the body from the pivot of revolution and the direct momentum of the rotating body.

Complete answer:
By keeping a moment of inertia of a body steady, by the chance that we double the time period, at that point angular momentum of the body consequently, on multiplying the time period, the angular momentum of the body turns out to be half. Switch on a fan. It will turn because of the utilization of power.
Presently switch it off. Before stopping, it will at present turn for quite a while without power on the grounds that here the body opposes changing in its condition of rotatory movement. This propensity is known as the moment of inertia. All pivoting bodies have a property called angular momentum. This is valid for a pivoting body, for example, a Merry-go-round or a body spinning around each other, for example, the Moon around the Earth.
Angular momentum is hard to get a handle on the grounds that they are not actually instinctive. It is substantially more successful in moving toward the thought from a straight momentum point of view since it is moderately reliable with our essential instinct.

The correct option is C.

Note:
Angular momentum is the result of a moment of inertia and angular speed.
Criticalness of the moment of inertia in rotational movement is the same as the mass in straight movement.
In direct movement, an object moves with constant speed, while in rotational movement the object moves with the angular speed. Consequently the moment of inertia is connected to angular momentum.