1.

Two balls, each of radius R, equal mass and density are placed in contact, then the force of gravitation between them is proportional toA. `F prop(1)/(R^(2))`B. `F prop R`C. `F propR^(4)`D. `F prop (1)/(R)`

Answer» Correct Answer - 3
`F = (GM^(2))/((2R)^(2))`
`M=(4)/(3) piR^(3)rho`
`F prop (M^(2))/(R^(2))`
`F prop (R^(6))/(R^(2))`
`R prop R^(4)`


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