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If the mass of earth is M, radius is R and gravitational constant is G, then the work done to take 1 kg mass from the earth's surface to infinity will be,

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Important Questions on Gravitation

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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 31
A rocket is launched with velocity 10 km/s. If radius of earth is R, then maximum height attained by it will be-
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 33
The escape velocity of a body of 1 kg mass on a planet is 100 m s-1. The gravitational Potential energy of the body on the planet is
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 34
The kinetic energy is needed to project a body of mass m from the earth surface (radius R) to infinity is -
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 35
The escape velocity of a sphere of mass m from earth having mass M and radius R is given by -
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 36
If g is the acceleration due to gravity at the earth's surface and r is the radius of the earth, the escape velocity for the body to escape out of earth's gravitational field is -
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 37
For the moon to cease to remain the earth's satellite, its orbital velocity has to increase by a factor of
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 38
Escape velocity on a planet is ve. If the radius of the planet remains the same and mass becomes 4 times, the escape velocity becomes
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Alpha Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise-1>Q 39
How many times is escape velocity ve, of orbital velocity vo for a satellite revolving near earth