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45. A streamlined body falls through air from a height h on the surface of a liquid. If d and D(D > d) represents the densities of the material of the body and liquid respectively, then the time after which the body will be instantaneously at rest, is

(a) √2h/g                                    (b) √(2hD)/gd

(c) √(2hd)/gD                                  (d) √(2hd)/[g(D-d)]

Answer-d

(27)

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