# NCERT Class-9 Science Solutions: Chapter 10-Gravitation Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 8:

The value of quantity in the law of gravitation

1. Depends on mass of earth only
2. Depends on radius of earth only
3. Depends on both mass and radius of earth
4. Is independent of mass and radius of the earth

Question 9:

Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be

Question 10:

The atmosphere is held to the earth by

1. Gravity
2. Wind
3. Clouds
4. Earth՚s magnetic field

Question 11:

The force of attraction between two unit point masses separated by a unit distance is called

1. Gravitational potential
2. Acceleration due to gravity
3. Gravitational field
4. Universal gravitational constant

Question 12:

The weight of an object at the center of the earth of radius R is

1. Zero
2. Infinite
3. times the weight at the surface of the earth
4. times the weight at surface of the earth

Question 13:

An object weighs in air. When immersed fully in water, it weighs only . The weight of the liquid displaced by the object will be