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Physics - Fluid Mechanics Questions and Answer >>

1 2 3 4 5  Next >>  Page 1 of 8 pages (36 Objective Questions)

1. A concrete sphere of radius R has a cavity of radius r which is packed with sawdust. The specific gravities of concrete and sawdust are respectively 2.4 and 0.3 for this sphere to float with its entire volume submerged under water. Ratio of mass of concrete to mass of sawdust will be . [AIIMS 1995]


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2. Why the dam of water reservoir is thick at the bottom . [AFMC 2005]


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3. A solid sphere of density η ( > 1) times lighter than water is suspended in a water tank by a string tied to its base as shown in fig. If the mass of the sphere is m then the tension in the string is given by


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4. A wooden cylinder floats vertically in water with half of its length immersed. The density of wood is


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5. A body is just floating on the surface of a liquid. The density of the body is same as that of the liquid. The body is slightly pushed down. What will happen to the body . [AIIMS 1980]


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