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In a satellite, If the time of revolution is T, then K.E is proportional toCorrectIncorrect
A Body is taken to a height of nR from the surface of earth. The ratio of acceleration due to gravity on the surface to that of altitude isCorrectIncorrect
The escape velocity of from the earth is about 11km/s. The escape velocity from a planet having twice the radius and the twice mean density as the earth isCorrectIncorrect
A rocket of mass M is launched vertically from the surface of the earth with an initial speed v. Assuming the radius of earth to be R and negligible air resistance the maximum height attained by the rocket above the surface of earth isCorrectIncorrect
Two particles of masses ‘m’ and ‘9m’ are separated by a distance ‘r’. At a point on the line joining them the gravitational field is zero. The gravitational potential at that point is (G = Universal constant of gravitation)CorrectIncorrect
The ratio of binding energy of a satellite at rest on earth’s surface to the binding energy of a satellite of same mass revolving around the earth at a height above the earth’s surface is ( radius of the earth)CorrectIncorrect