Question

# Question 11 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

Solution

## (d) universal gravitational constant​​​​​​​ According to Universal law of gravitation, F=Gm1m2r2 Where, m1 and m2 are the masses of the objects, r is the seperation distance between them, F is the gravitational force between the objects and G is the universal gravitational constant. Given, m1=m2=1 unit and r=1 unit ∴F=G×1×112 ⇒F=G Therefore, the force of attraction between two unit point masses separated by a unit distance is called universal gravitational constant.

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