Gravitation Test

Result

Gravitation Test - 76

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Weekly Quiz Competition

Question 1
4 / -1

Assuming the earth to have a constant density, point out which of the following curves show the variation of acceleration due to gravity from the centre of earth to the points far away from the surface of earth

A

B

C

D
None of these

Solution
Question 2
4 / -1

The diagram showing the variation of gravitational potential of earth with distance from the centre of earth is

A

B

C

D

Solution
Question 3
4 / -1

By which curve will the variation of gravitational potential of a hollow sphere of radius R with distance be depicted

A

B

C

D

Solution
Question 4
4 / -1

A sphere of mass M and radius R₂has a concentric cavity of radius R₁ as shown in figure. The force fexerted by the sphere on a particle of mass m located at a distance r from the centre of sphere varies as (0 ≤ r ≤∞)

A

B

C

D

Solution
Question 5
4 / -1

Which one of the following graphs represents correctly the variation of the gravitational field (F) with the distance (r) from the centre of a spherical shell of mass M and radius a?

A

B

C

D

Solution
Question 6
4 / -1

Suppose, the acceleration due to gravity at the earth\'s surface is 10 m/s² and at the surface of Mars it is 4.0 m /s². A 60 kg passenger goes from the earth to the Mars in a spaceship moving with a constant velocity. Neglect all other objects in the sky. Which part of figure best represents the weight (net gravitational force)of the passenger as a function of time.

A
A

B
B

C
C

D
D

Solution
Question 7
4 / -1

The curves for potential energy (U) and kinetic energy (E_x) of a two particle system are shown in figure. At what points the system will be bound?

A
Only at point D

B
Only at point A

C
At point D and A

D
At points A, B and C
Question 8
4 / -1

The correct graph representing the variation of total energy (E), kinetic energy (K) and potential energy (U) of a satellite with its distance from the centre of earth is

A

B

C

D

Solution
Question 9
4 / -1

A shell of mass M and radius R has a point mass m placed at a distance r from its centre. The gravitational potential energy U (r) vsr will be

A

B

C

D

Solution
Question 10
4 / -1

A

B

C

D

Solution