Gravitation Tes...

In a planet's motion around a sun, if the eccentricity of the orbit increases, then

The gravitational potential energy is the

The weight (W) of an object at a depth of R/4 from the surface of the earth will be (R is the radius of the earth)

Gravitational potential energy is 

A particle of mass M is placed at origin and a small mass m is placed at A, at a distance of r from M. A force F is applied to m to make it move from A to a nearby point B. When the force becomes zero, it is observed that the mass m moves from B back to A. This is due to the reason

The areal velocity of an object of mass m=2 kg revolving around another object is given by $$2m^2/s$$, what is the angular momentum of the particle

A planet revolves around the sun in an orbit with an eccentricty = 0.99, the orbit is:

Kepler's first law provides information about

Under the influence of the Coulomb field of charge $$+Q$$, a charge $$-q$$ is moving it in an elliptical orbit. Find out the correct statement $$(s)$$.

The acceleration due to gravity at a height $$\left (\dfrac {1}{20}\right )^{th}$$ the radius of earth above earth's surface is $$9\ m/s^{2}$$. Its value at a point at an equal distance below the surface of earth is ________ $$m/s^{2}$$.