Value of radius of gyration of a body depends on axis of rotation.
Radius of gyration is root mean square distance of particle of the body from the axis of rotation.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false.

Answer

A

Explanation

(a) Radius of gyration of a body about a given is equal to
It thus depends upon shape and size of the body, position and configuration of the axis of rotation and also an distribution of mass of body w.r.t. the axis of rotation.
`K=(sqrt(r_(1)^(2)+r_(2)^(2)+......r_(n)^(2)))/n`
It thus depends upon shape and size of the body. position and configuration of the axis of rotation and also on distribution of mass of body w.r.t the axis of rotation.