The angular velocity of rotation of a st...

The angular velocity of rotation of a star of mass M and diameter R at which the matter will escape from its equator is

`sqrt((2GR)/M)`

`sqrt((2GM)/R^3)`

`sqrt((2GM)/R)`

`sqrt((2GM^2)/R)`

Text Solution

Verified by Experts

Topper's Solved these Questions

FRICTION IS SOLIDS AND LIQUIDS
TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos
LAWS OF MOTION
TARGET PUBLICATION|Exercise EXERCISE|281 Videos

Similar Questions

Explore conceptually related problems

The angular velocity of rotation of star (of mass M and radius R ) at which the matter start to escape from its equator will be

The angular velocity of rotation of a planet of mass M and radius R, at which the matter start to escape from its equator is

The escape velocity of a particle of mass m varies as

The M.I. of solid sphere of mass M and radius R about its diameter is

The escape velocity from the surface of the earth of radius R and density rho

An extremely small and dense neutron star of mass M and radius R is rotating with angular velocity omega . If an object is placed at its equator, then it will remain stuck to it due to gravity, if

The angular velocity of a particle increases from 0 to omega as it completes x rotations. Then number of rotations completed by it when its angular velocity becomes 2 omega .

If omega_E and omega_H are the angular velocities of the earth rotating about its own axis and the hour hand of the clock respectively, then

Auniform disc of mass M and radius R is rotating in a horizontal plane about anaxis perpendicular to its plane with an angular velocity omega . Another disc of mass M/3 and radius R/2 is placed gently on the first disc coaxially. Then final angular velocity of the system is

A disc of mass 2 kg and radius 0.2 m is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity 50 rad/s. Another disc of mass 4 kg and radius 0.1m rotates about an axis passing through its centre and perpendicular to its plane with angular velocity 100 rad/s. If the two discs are coaxially coupled, then the angular velocity of the coupled system would be

TARGET PUBLICATION-Gravitation-Exercise

Planet A has a mass and radius twice that of Planet B. The escape vel...
Text Solution
|
The escape velocities of the two planets, of densities rho1 and rho2 a...
Text Solution
|
The angular velocity of rotation of a star of mass M and diameter R at...
Text Solution
|
Escape velocity of a body from the surface of a spherical planet of ma...
Text Solution
|
The escape velocity of a body from the surface of the earth is Ve and ...
Text Solution
|
The ratio of the acceleration due to gravity on two planets P1 and P2 ...
Text Solution
|
The radius ofa planet is 1//4^(th)of earth's radius and its accelerati...
Text Solution
|
The escape velocity of a body from the surface of the earth is equal t...
Text Solution
|
Given mass of the moon is 1/81 of the mass of the earth and correspond...
Text Solution
|
A geostationary satellite
Text Solution
|
A geostationary satellite has an orbital period of
Text Solution
|
When a satellite moves around the earth (consider elliptical orbits),
Text Solution
|
Choose the correct statement from the following: The radius of the orb...
Text Solution
|
A body detached gently from the outer wall of a satellite orbiting aro...
Text Solution
|
A satellite revolves around the earth in an elliptical orbit. Its spee...
Text Solution
|
The nature of the path of the satellite depends upon
Text Solution
|
If the horizontal velocity is less than critical velocity, then the sa...
Text Solution
|
The maximum possible velocity of a satellite orbiting round the earth ...
Text Solution
|
The escape velocity of a body from the surface of the earth is equal t...
Text Solution
|
If the gravitational force were proportional to 1/r, then a particle i...
Text Solution
|