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प्रश्न
What does a force do in the following case?
You twist a piece of rubber.
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उत्तर
Force produces stretching in the rubber.
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संबंधित प्रश्न
What happens to the force between two objects, if the masses of both objects are doubled?
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.
The acceleration produced by a force in an object is directly proportional to the applied _________ And inversely proportional to the _________ Of the object.
How will the force of gravitation between two objects change if the distance between them is:
Doubled
Where will you weigh more: at the centre of the earth or at the surface of the earth?
Name and state the action and reaction in the following case:
A book lying on a table.
Explain why:
The atmosphere does not escape.
We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
Write the answer of the question with reference to laws of gravitation.
Write the value of the universal gravitational constant.
