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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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