Home
Class 12
PHYSICS
A very long (length L) cylindrical galax...

A very long (length L) cylindrical galaxy is made of uniformly distributed mass and has radius R `(R lt lt L)` A star outside the galaxy is orbiting the galaxy in a plane perpendicular to the galaxy and passing through its centre. If the time period of star is T and its distance from the galaxy's axis is r, then-

Promotional Banner

Similar Questions

Explore conceptually related problems

Radius of gyration of disc rotating about an axis perpendicular to its plane passing through its centre is (If R is the radius of disc)

Radius of gyration of disc rotating about an axis perpendicular to its plane passing through through its centre is (If R is the radius of disc)

Find the moment of inertia of a uniform half-disc about an axis perpendicular to the plane and passing through its centre of mass. Mass of this disc is M and radius is R.

Calculate the radius of gyration of a cylindrical rod of mass M and length L about an axis of rotation perpendicular to its length and passing through its centre.

Calculate the radius of gyration of a uniform thin rod of mass M and length L about an axis of rotation perpendicular to its length and passing through its centre.

Radius of gyration of a ring of radius R about an axis passing through its centre and perpendicular to its plane is

A charge q is uniformly distributed on a non-conducting disc of radius R . It is rotated with an angular speed co about an axis passing through the centre of mass of the disc and perpendicular to its plane. Find the magnetic moment of the disc.

A charge q is uniformly distributed on a non-conducting disc of radius R . It is rotated with an angular speed co about an axis passing through the centre of mass of the disc and perpendicular to its plane. Find the magnetic moment of the disc.