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An earth satellite of mass m revolves in a circular orbit at a height h from the surface of the earth. R is the radius of the earth and g is the acceleration due to gravity at the surface of the earth. The velocity of the satellite in the orbit is given by

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Important Questions on Gravitation

EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 30
The time period of an earth satellite in circular orbit is independent of
MEDIUM
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 31
If a planet was suddenly stopped in its orbit, suppose to be circular, find how much time will it take in falling onto the sun?
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JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 32
A satellite revolves in an elliptical orbit around a planet of mass M. Its time period is T and M is at the centre of the path. The length of the major axis of the path is, (neglect the gravitational effect of other objects in space) 
MEDIUM
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 33
The distance of a geostationary satellite from the centre of the earth (Radius, R=6400 km) is nearest to
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 34
If the escape speed of a projectile on Earth's surface is 11.2 km s-2 and a body is projected out with thrice this speed, then determine the speed of the body far away from the Earth
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JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 35
If the radius of a planet is four times that of the earth and the value of g is the same for both, the escape velocity on the planet will be
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 36
Acceleration due to gravity on a planet is 10 times the value on the Earth. Escape velocity for the planet and the Earth are vP and ve, respectively. Assuming that the radii of the planet and the Earth are same, then
EASY
JEE Main
IMPORTANT
Physics Crash Course JEE Main>Chapter 6 - Gravitation>Level 1>Q 37
The escape velocity of a body on an imaginary planet which is thrice the radius of the earth and double the mass of the earth is (ve is the escape velocity of earth)