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A barometer kept in an elevator reads 76 cm when the elevator is accelerating upwards. The most likely pressure inside the elevator (in cm of Hg) is

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Important Questions on Mechanical Properties of Fluids

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A beaker containing a liquid of density ρ moves up with an acceleration 'a'. The pressure due to the liquid at a depth h below free surface of the liquid is
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A barometer kept in an elevator reads 76 cm when it is at rest. If the elevator goes up with some acceleration, the reading will be
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A piece of gold weighs 10 g in air and 9 g in water. What is the volume of cavity?
(Density of gold =19.3 g cm-3)
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A block of ice floats in oil in a vessel when the ice melts, the level of oil will
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An object suspended by a wire stretches it by 10 mm. When object is immersed in a liquid the elongation in wire reduces by 103 mm. The ratio of relative densities of the object and liquid is
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A spring balance reads 200 gf when carrying a lump of lead in air. If the lead is now immersed with half of its volume in brine solution, what will be the new reading of the spring balance ? specific gravity of lead and brine are 11.4 and 1.1 respectively
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A boat having some iron pieces is floating in a pond. If iron pieces are thrown in the liquid then level of liquid
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An ice cube contains a large air bubble. The cube is floating on the horizontal surface of water contained in a trough. What will happen to the water level, when the cube melts ?