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Class XI Physics Gravitation 5: Important Questions

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Question 1

The effect of rotation of the Earth on the value of acceleration due to gravity is

Question 2

Assuming earth to be a sphere of mass M and radius R, the acceleration due to gravity g is proportional to:

Question 3

An object is thrown from the surface of a planet with speed vertically upward then maximum height reached by particle will be

Question 4

The change in the value of g at a height ‘h’ above the surface of the earth is the same as at a depth ‘d’ below the surface of earth. When both ‘d’ and ‘h’ are much smaller than the radius of earth, then which one of the following is correct?

Question 5

The time period of an earth satellite in circular orbit is independent of

Question 6

A satellite is revolving in fixed circular orbit around earth and making four revolutions in a day. If earth start contracting and its radius becomes half of the present radius then the satellite will make how many revolutions in a day?

Question 7

A particle is kept at distance r have mass ‘m’, then interaction potential energy of system will be