Chapter 12 – Fluid Mechanics, Surface Tension and Viscosity
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
Statement I: In the three cases shown in the figure, force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same.
15
Sep
Statement I: In the three cases shown in the figure, force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same. force exerted by liquid on three vessels is the same. Statement II: Pressure at the bottom in each case is same. Statement I: In [...]
Statement 1 : In taking into account the fact that any object, which floats, must, have an average density less than that of water, during World War I, a number of cargo vessels are made of concrete. Statement 2 : Concrete cargo vessels were filled with air.
15
Sep
Statement 1 : In taking into account the fact that any object, which floats, must, have an average density less than that of water, during World War I, a number of cargo vessels are made of concrete. Statement 2 : Concrete cargo vessels were filled with air. a number of cargo vessels are made of [...]
Statement I: Imagine holding two identical bricks under water. Brick A is completely submerged just below the surface of water, while brick B is at a greater depth. The magnitude of force exerted by the person (on the brick) to hold brick B in place is the same as magnitude of force. exerted by the person (on the brick) to hold brick A in place. Statement II: The magnitude of buoyant force on a brick completely submerged in water is equal to the magnitude of weight of water it displaced and does not depend on the depth of the brick in water.
15
Sep
Statement I: Imagine holding two identical bricks under water. Brick A is completely submerged just below the surface of water, while brick B is at a greater depth. The magnitude of force exerted by the person (on the brick) to hold brick B in place is the same as magnitude of force. exerted by the [...]
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A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10% ,
Statement I: Imagine holding two identical bricks under water. Brick A is completely submerged just below the surface of water ,
then the rate of flow of the liquid shall change nearly by ,
Statement I: When a body floats such that its parts are immersed into two immiscible liquids, then force exerted by liquid 1 is of magnitude ρ1v1g. Statement II: Total buoyant force = ρ1v1g + ρ2v2g.
15
Sep
Statement I: When a body floats such that its parts are immersed into two immiscible liquids, then force exerted by liquid 1 is of magnitude ρ1v1g. Statement II: Total buoyant force = ρ1v1g + ρ2v2g. Statement I: When a body floats such that its parts are immersed into two immiscible liquids then force exerted by [...]
Neglecting the density of air, the terminal velocity obtained by a raindrop of radius 0.3mm falling through the air of viscosity 1.8×10^−5 N/m^2 will be
15
Sep
Neglecting the density of air, the terminal velocity obtained by a raindrop of radius 0.3mm falling through the air of viscosity 1.8×10^−5 N/m^2 will be Neglecting the density of air the terminal velocity obtained by a raindrop of radius 0.3mm falling through the air of viscosity 1.8×10^−5 N/m^2 will be September 15, 2020 Category: Cengage [...]
Water rises to a height h in a capillary tube of cross-sectional area A, the height to which water will rise in a capillary tube of cross-sectional area 4A will be
15
Sep
Water rises to a height h in a capillary tube of cross-sectional area A, the height to which water will rise in a capillary tube of cross-sectional area 4A will be the height to which water will rise in a capillary tube of cross-sectional area 4A will be Water rises to a height h in [...]
The density of water at the surface of the ocean is ρ . If the bulk modulus of water is B, what is the density of ocean water at a depth where the pressure is aPo , where Po is the atmospheric pressure:
15
Sep
The density of water at the surface of the ocean is ρ . If the bulk modulus of water is B, what is the density of ocean water at a depth where the pressure is aPo , where Po is the atmospheric pressure: The density of water at the surface of the ocean is ρ [...]
A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by another ball of the same mass but half the radius, then the terminal velocity will be (neglect the effect of buoyancy)
15
Sep
A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by another ball of the same mass but half the radius, then the terminal velocity will be (neglect the effect of buoyancy) A spherical ball falls through viscous medium with terminal velocity v. If this ball is replaced by [...]
A river 10 m deep is flowing at 5 m/s. The shearing stress between horizontal layers of the river is (η=10^−3 SI units).
15
Sep
A river 10 m deep is flowing at 5 m/s. The shearing stress between horizontal layers of the river is (η=10^−3 SI units). A river 10 m deep is flowing at 5 m/s. The shearing stress between horizontal layers of the river is (η=10^−3 SI units). September 15, 2020 Category: Cengage JEE Mains Physics by [...]
Between a plate of area 100 cm^2 and another plate of area 100 m^2 there is a 1 mm, thick layer of water, if the coefficient of viscosity of water is 0.01 poise, then the force required to move the smaller plate with a velocity 10 cm/s with reference to large plate is
15
Sep
Between a plate of area 100 cm^2 and another plate of area 100 m^2 there is a 1 mm, thick layer of water, if the coefficient of viscosity of water is 0.01 poise, then the force required to move the smaller plate with a velocity 10 cm/s with reference to large plate is Between a [...]