Advertisements
Advertisements
प्रश्न
The mass of moon is about 0.012 times that of earth and its diameter is about 0.25 times that of earth. The value of G on the moon will be:
विकल्प
less than that on the earth
more than that on the earth
same as that on the earth
about one-sixth of that on the earth
Advertisements
उत्तर
Same as that of the earth
G is universal gravitational constant. So, it remains constant everywhere.
APPEARS IN
संबंधित प्रश्न
Answer the following:
You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
Choose the correct alternative:
Acceleration due to gravity is independent of mass of the earth/mass of the body.
The gravitational intensity at the centre of a hemispherical shell of uniform mass density has the direction indicated by the arrow (see Fig 8.12) (i) a, (ii) b, (iii) c, (iv) 0.

Explain the following:
People often shake the branches of a tree for getting down its fruits.
Distinguish between gravity and gravitation
The force of attraction between any two material objects is called __________.
Molecules in air in the atmosphere are attracted by gravitational force of the earth. Explain why all of them do not fall into the earth just like an apple falling from a tree.
Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle with respect to its centre of mass is ______.
If three equal masses m are placed at the three vertices of an equilateral triangle of side 1/m then what force acts on a particle of mass 2m placed at the centroid?
The acceleration of the Moon towards the Earth is approximately:
