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14. A ball of radius r and density P falls freely under gravity through a distance h before entering water. Velocity of ball does

14. A ball of radius r and density P falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n, the value of h is given by h .2 (a) g (b) 81 g 2 .4 P- 4 P (c) 81 (d) 9

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