Q. 21

How is the gravitational force between two - point masses affected when they are dipped in water keeping the separation between them the same?

Answer :

The gravitational force between two - point masses is given by



Where, andare masses and r is the distance between them respectively & G is the universal gravitational constant.


This gravitational force is independent of the medium in which masses are placed since the value of G is a universal constant and independent of medium and the masses also remains unaffected.


Therefore, the gravitational force between the two - point masses when they are dipped in water keeping the separation between them same remains same when put in vacuum.


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