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Physics - Fluid Mechanics Questions and Answer >>

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1. 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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2. A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm/cc. The pressure difference between the point P and S will be


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3. 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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4. When a large bubble rises from the bottom of a lake to the surface. Its radius doubles. If atmospheric pressure is equal to that of column of water height H, then the depth of lake is . [AIIMS 1995; AFM]


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5. In which one of the following cases will the liquid flow in a pipe be most streamlined. [Pb. CET 2005]


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