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प्रश्न
What is the importance of the universal law of gravitation?
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उत्तर
The importance of the universal law of gravitation is as follows:
- Through this law, we can find the mass of the earth, sun, etc.
- Using this law, the distance between planets and other bodies is found.
- Due to this force, the moon moves around the earth.
- It is understood from this law that the tides in the sea occur due to the moon and the sun.
संबंधित प्रश्न
Write the answer of the question with reference to laws of gravitation.
State the universal law of gravitation.
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.
Can we apply Newton’s third law to the gravitational force ? Explain your answer.
Is the law of gravitation applicable in case of the sun and the moon?
Name and state the action and reaction in the following case:
A person walking on the ground.
Two equal and opposite forces acting at the same point on a stationary body. Will the body move? Give reason to explain your answer.
Answer the following question.
What are the dimensions of the universal gravitational constant?
The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is ______ of the distance between them.
As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would ______.
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?
