question_answer 44)

  The force of attraction between two unit point masses separated by a unit distance is called (a) gravitational potential                                             (b) acceleration due to gravity (c) gravitational field                                                       (d) universal gravitational constant

Answer:

  (d) We know that, the gravitational force, Where, F = Force between mass m = Mass of the body M = Gravitational Constant r = 'Distant between two mass Given, M=1 unit, m=1 unit and r=1 unit, we get Therefore, the force of attraction between two unit point masses separated by a unit distance is called universal gravitational constant.