Let the radius of the earth be R. Now, assume that the earth shrunk by 20% but the mass is the same. What would be the new value of acceleration due to gravity at a distance R from the centre of the earth if the value at the same distance in the previous case was 'g''?

MCQs on keplers laws, gravitation universal law, gravitational constant, acceleration due to earth gravity, gravitational potential energy, escape speed, earth satellite, orbiting satellite energy, weightlessness, geostationary and polar satellites.