EASY
JEE Main
IMPORTANT
Earn 100
The ratio of the radius of the earth to that of the moon is . The ratio of the acceleration due to gravity on the earth to that on the moon is . The ratio of the escape velocity from the earth's surface to that from the moon is
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Important Questions on Gravitation
MEDIUM
JEE Main
IMPORTANT
With what velocity should a particle be projected so that its height becomes equal to radius of the earth?
EASY
JEE Main
IMPORTANT
At what angle with the horizontal should a projectile be fired with the escape velocity to enable it escape from gravitational pull of the earth?
MEDIUM
JEE Main
IMPORTANT
Energy required in moving a body of mass from a distance to from centre of the earth of mass is
EASY
JEE Main
IMPORTANT
The kinetic energy needed to project a body of mass $m$ from the earth surface (radius ) to infinity is
EASY
JEE Main
IMPORTANT
Gas escapes from the surface of a planet, because it acquires an escape velocity. The escape velocity will depend on which of the following factors:
I. Mass of the planet.
II. Mass of the particle escaping.
III. Temperature of the planet.
IV. Radius of the planet.
Select the correct answer from the codes given below
EASY
JEE Main
IMPORTANT
What is the energy required to launch a satellite from the earth's surface in a circular orbit at an altitude of ( radius of the earth)
EASY
JEE Main
IMPORTANT
What is not conserved in case of celestial bodies revolving around sun all the time?
EASY
JEE Main
IMPORTANT
The distance of the centres of moon and the earth is . The mass of the earth is times the mass of the moon. At what distance from the centre of the earth, the gravitational force on a particle will be zero?
