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Two spheres of mass m & 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 will now be

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\frac{F}{3}

\frac{F}{9}

answer is A.

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Detailed Solution

F = \frac{GMm}{r^{2}}

If the space between the bodies filled with a medium, the force of attraction do not change because it is independent of the medium between the bodies.

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