Advertisements
Advertisements
प्रश्न
If the distance between the Earth and Sun were to be doubled from its present value, the number of days in a year would be ___________.
पर्याय
64.5
1032
182.5
730
Advertisements
उत्तर
If the distance between the Earth and Sun were to be doubled from its present value, the number of days in a year would be 1032.
APPEARS IN
संबंधित प्रश्न
A planet moving along an elliptical orbit is closest to the Sun at distance r1 and farthest away at a distance of r2. If v1 and v2 are linear speeds at these points respectively. Then the ratio `"v"_1/"v"_2` is
If the mass and radius of the Earth are both doubled, then the acceleration due to gravity g'
An object of mass 10 kg is hanging on a spring scale which is attached to the roof of a lift. If the lift is in free fall, the reading in the spring scale is ___________.
Define gravitational potential energy.
Derive the expression for gravitational potential energy.
If a comet suddenly hits the Moon and imparts energy which is more than the total energy of the Moon, what will happen?
If the Earth’s pull on the Moon suddenly disappears, what will happen to the Moon?
Two bodies of masses m and 4m are placed at a distance of r. Calculate the gravitational potential at a point on the line joining them where the gravitational field is zero.
Calculate the gravitational field at point O due to three masses m1, m2 and m3 whose positions are given by the following figure. If the masses m1 and m2 are equal what is the change in a gravitational field at the point O?

What is the gravitational potential energy of the Earth and Sun? The Earth to Sun distance is around 150 million km. The mass of the Earth is 5.9 × 1024 kg and the mass of the Sun is 1.9 × 1030 kg.
