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
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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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 [...]
A small metal ball of diameter 4 mm and density 10.5 g/cm^3 in dropped in glycerine of density 1.5 g/cm^3. The ball attains a terminal velocity of 8 cm/sec. The coefficient of viscosity of glycerine is
15
Sep
A small metal ball of diameter 4 mm and density 10.5 g/cm^3 in dropped in glycerine of density 1.5 g/cm^3. The ball attains a terminal velocity of 8 cm/sec. The coefficient of viscosity of glycerine is A straw 6 cm long floats on water. The water film on one side has surface tension of 50 [...]
A marble of mass x and diameter 2r is gently released in tall cylinder containing honey. If the marble displace mass y ( < x) of the liquid, then the terminal velocity is proportional to
15
Sep
A marble of mass x and diameter 2r is gently released in tall cylinder containing honey. If the marble displace mass y ( < x) of the liquid, then the terminal velocity is proportional to A marble of mass x and diameter 2r is gently released in tall cylinder containing honey. If the marble displace [...]
A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ = 0 degree ), it appears to weigh 0.044 N. But when the plate is greasy (θ =180 degree ), it appears to weigh 0.03 N. The surface tension of water is
15
Sep
A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ = 0 degree ), it appears to weigh 0.044 N. But when the plate is greasy (θ =180 degree ), it appears to [...]
Posted in:
Cengage JEE Mains Physics by B.M Sharma
,
Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
,
Tags:
A thin square plate of side 5 cm is suspended vertically from a balance so that lower side just dips into water with side to surface. When the plate is clean (θ = 0 degree ) ,
it appears to weigh 0.03 N. The surface tension of water is ,
it appears to weigh 0.044 N. But when the plate is greasy (θ =180 degree ) ,
Two soap bubbles of radii a and b combine to form a single bubble of radius c. If P is the external pressure, then Surface Tension of the soap solution is:
15
Sep
Two soap bubbles of radii a and b combine to form a single bubble of radius c. If P is the external pressure, then Surface Tension of the soap solution is: then Surface Tension of the soap solution is: Two soap bubbles of radii a and b combine to form a single bubble of radius [...]
The surface energy of a liquid drop is E. It is sprayed into 1000 equal droplets. Then its surface energy becomes
15
Sep
The surface energy of a liquid drop is E. It is sprayed into 1000 equal droplets. Then its surface energy becomes The surface energy of a liquid drop is E. It is sprayed into 1000 equal droplets. Then its surface energy becomes September 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]
Work W is required to form a bubble of volume V from a given solution. What amount of work is required to be done to form a bubble of volume 2V ?
15
Sep
Work W is required to form a bubble of volume V from a given solution. What amount of work is required to be done to form a bubble of volume 2V ? Work W is required to form a bubble of volume V from a given solution. What amount of work is required to be [...]
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7×10^−2 N/m. The diameter of the hole is
15
Sep
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7×10^−2 N/m. The diameter of the hole is A hollow sphere has a [...]