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If the radius of the earth shrinks by 0.2% without any change in the mass, escape velocity from the surface of earth is

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Important Questions on Gravitation

EASY
CG PET
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2017>Q 1
If g is the acceleration due to gravity on the surface of the earth, then its value at a height equal to double of the radius of the earth will be
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CG PET
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2018>Q 2
The radius of Earth is R and g is the acceleration due to gravity on its surface. What should be the angular speed of the Earth so that bodies lying on the equator may appear weightess?
HARD
CG PET
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2019>Q 3
What wil be the effect on the weight of a body placed on the surface of earth, if earth suddenly starts rotating with half of its angular velocity of rotation?
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CG PET
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2018>Q 4
Two bodies of masses m and 4 m are placed at a distance r. The gravitational potential at a point on the line joining them, where the gravitational field is zero, is
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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2017>Q 5

A satellite is launched into a circular orbit of radius R around the earth. A second satellite is launched into an orbit of radius 1.02 R. The period of the second satellite is larger than that of the first one by approximately.

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CG PET
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 8 - Gravitation>CG PET 2019>Q 6
If the radius of the earth shrinks by 0.2% without any change in the mass, escape velocity from the surface of earth is