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(A) According to Newton's law of universal gravitation,the force $F$ between two point masses $m$ and $M$ separated by a distance $r$ is given by the

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$F$

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(A) According to Newton's law of universal gravitation,the force $F$ between two point masses $m$ and $M$ separated by a distance $r$ is given by the formula: $F = \frac{G M m}{r^2}$.This formula depends only on the masses of the objects,the distance between them,and the universal gravitational constant $G$.The gravitational force is independent of the medium present between the two masses.Therefore,even when the space is filled with a liquid of specific gravity $3$,the gravitational force remains unchanged.Thus,the new force is $F$.

Two spheres of masses $m$ and $M$ are situated in air and the gravitational force between them is $F$. The space around the masses is now filled with a liquid of specific gravity $3$. The gravitational force between the bodies will now be

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