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प्रश्न
Law of gravitation gives the gravitational force between
विकल्प
the earth and a point mass only
the earth and Sun only
any two bodies having some mass
two charged bodies only
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उत्तर
any two bodies having some mass
Explanation:
The Law of gravitation gives the gravitational force between any two bodies having some mass as it is a universal law.
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संबंधित प्रश्न
How does the force of gravitation between two objects change when the distance between them is reduced to half?
If the moon attracts the earth, why does the earth not move towards the moon?
What happens to the force between two objects, if the distance between the objects is doubled and tripled?
Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces ? Why don’t the two objects in a room move towards each other due to this force ?
Can you think of two particles which do not exert gravitational force on each other?
At noon, the sun and the earth pull the objects on the earth's surface in opposite directions. At midnight, the sun and the earth pull these objects in same direction. Is the weight of an object, as measured by a spring balance on the earth's surface, more at midnight as compared to its weight at noon?
Let V and E be the gravitational potential and gravitational field at a distance r from the centre of a uniform spherical shell. Consider the following two statements :
(A) The plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
A semicircular wire has a length L and mass M. A particle of mass m is placed at the centre of the circle. Find the gravitational attraction on the particle due to the wire.
Solve the following problem.
Calculate the acceleration due to gravity at a height of 300 km from the surface of the Earth. (M = 5.98 × 1024 kg, R = 6400 km).
