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Physics - Fluid Mechanics Questions and Answer >>

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1. Spherical balls of radius r are falling in a viscous fluid of viscosity η with a velocity v. The retarding viscous force acting on the spherical ball is. [AIEEE 2004]

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2. 1) Oil is transported through a pipeline by a series of pumps that can produce a pressure of in the oil leaving each pump. The losses in the pipeline cause a pressure drop of each kilometer. What is the maximum possible spacing of the pumps?. [Sahil]

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3. A cylinder of height 20 m is completely filled with water. The velocity of efflux of water (in m/s) through a small hole on the side wall of the cylinder near its bottom is . [AIEEE 2002]

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4. Equal masses of water and a liquid of density 2 are mixed together, then the mixture has a density of

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5. 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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