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Class XI Physics Gravitation 1

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Question 1

A satellite of mass m, is orbiting around the earth at a distance r from centre of earth, if it stopped suddenly the loss in total energy will be

Question 2

The variation of gravitational intensity g for a uniform solid sphere of mass M and radius R is given by

Question 3

Match the Following Column A with Column B:

Question 4

If the distance between sun and earth is made 3 times of the present value then gravitational force between them will become-

Question 5

A planet of mass m is moving in an elliptical path about the sun. Its maximum and minimum distances from the sun are r₁ and r₂ respectively. If M_s is the mass of sun then the angular momentum of this planet about the centre of sun will be -

Question 6

The gravitational field in a region is given by (2

+ 2

) N /kg. What is the work done by an external agent to slowly shift a particle of mass 10 kg from the point (0,0 ) to a point (5m, 4m) ?

Question 7

A person brings a mass of 1kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2m/s as it reaches A. The work done by the person on the mass is –3J. The potential at A is-

Question 8

The diameters of two planets are in ratio 4 : 1. Their mean densities have ratio 1 : 2. The ratio of 'g' on the planets will be-

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Dec 20JEE & BITSAT