Cengage JEE Mains Physics by B.M Sharma
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 [...]
A U-tube is partially filled with water. Oil which does not mix with water is next poured into one side until water rises by 25 cm on the other side. If the density of oil is 0.8 the oil level will stand higher than the water level by
15
Sep
A U-tube is partially filled with water. Oil which does not mix with water is next poured into one side until water rises by 25 cm on the other side. If the density of oil is 0.8 the oil level will stand higher than the water level by A capillary tube is attached horizontally to [...]
A sphere of brass released in a long liquid column attains a terminal speed v0. If the terminal speed is attained by a sphere of marble of the same radius and released in the same liquid is n v0, then the value of n will be (Given: The specific gravities of brass, marble and liquid are 8.5,2.5 and 0.8, respectively)
15
Sep
A sphere of brass released in a long liquid column attains a terminal speed v0. If the terminal speed is attained by a sphere of marble of the same radius and released in the same liquid is n v0, then the value of n will be (Given: The specific gravities of brass, marble and liquid [...]
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Cengage JEE Mains Physics by B.M Sharma
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Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
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2.5 and 0.8 ,
A sphere of brass released in a long liquid column attains a terminal speed v0. If the terminal speed is attained by a sphere of marble of the same radius and released in the same liquid is n v0 ,
marble and liquid are 8.5 ,
respectively ,
then the value of n will be (Given: The specific gravities of brass ,
A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of the liquid shall change nearly by
15
Sep
A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of the liquid shall change nearly by A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is [...]