Gravitation Tes...

Two planets of radii in the ratio 2 : 3 are made from the material of density in the ratio 3 : 2. Then, the ratio of acceleration due to gravity g₁/g₂ at the surface of the two planets will be

Assume that the acceleration due to gravity on the surface of the moon is 0.2 times the acceleration due to gravity on the surface of the earth. If R_e is the maximum range of a projectile on the earth\'s surface, what is the maximum range on the surface of the moon for the same velocity of projection ?

What will be the acceleration due to gravity at height h if h >> R. Where R is radius of earth and g is acceleration due to gravity on the surface of earth ?

A research satellite of mass 200 kg circles the earth in an orbit of average radius 3R/2 where R is the radius of the earth. Assuming the gravitational pull on a mass of 1 kg on the earth\'s surface to be 10 N, the pull on the satellite will be

The value of g decreases inside the surface of earth because

The value of g on the surface of earth is smallest at the equator because

An astronaut on a strange planet finds that acceleration due to gravity is twice as that on the surface of earth. Which of the following could explain this ?

Assuming that the earth is a sphere of radius R_E with uniform density, the distance from its centre at which the acceleration due to gravity is equal to g/3 [ g is the acceleration due to gravity on the surface of earth) is

A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11 km s^-1, the escape velocity from the surface of the planet would be

In a gravitational field , at a point where the gravitational potential is zero