Cengage JEE Mains Physics by B.M Sharma
Water flows through a horizontal tube as shown in the figure. If the difference of heights of water column in the vertical tubes is h=0.02m, and the areas of cross section at A and B are 4×10^−4m^2 and 2×10^−4m^2, respectively, then the rate of flow of water across any section is
12
Sep
Water flows through a horizontal tube as shown in the figure. If the difference of heights of water column in the vertical tubes is h=0.02m, and the areas of cross section at A and B are 4×10^−4m^2 and 2×10^−4m^2, respectively, then the rate of flow of water across any section is and the areas of [...]
In the figure, the cross-sectional area of the smaller tube is a and that of the larger tube is 2a. A block of mass m is kept in the smaller tube having the same base area a, as that of the tube. The difference between water levels of the two tubes is
12
Sep
In the figure, the cross-sectional area of the smaller tube is a and that of the larger tube is 2a. A block of mass m is kept in the smaller tube having the same base area a, as that of the tube. The difference between water levels of the two tubes is as that of [...]
Three identical vessels A, B and C contain same quantity of liquid. In each vessel balls of different densities but same masses are placed. In vessel A, the ball is partly submerged; in vessel B, the ball is completely submerged but floating and in vessel C, the ball has sunk to the base. If FA, FB and FC are the total forces acting on the base of vessels A, B and C, respectively, then
12
Sep
Three identical vessels A, B and C contain same quantity of liquid. In each vessel balls of different densities but same masses are placed. In vessel A, the ball is partly submerged; in vessel B, the ball is completely submerged but floating and in vessel C, the ball has sunk to the base. If FA, [...]
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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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B and C contain same quantity of liquid. In each vessel balls of different densities but same masses are placed. In vessel A ,
b and c`. ,
FB and FC are the total forces acting on the base of vessels A ,
respectively ,
the ball has sunk to the base. If FA ,
the ball is completely submerged but floating and in vessel C ,
the ball is partly submerged; in vessel B ,
then ,
Three identical vessels A ,
The minimum horizontal acceleration of the container, so that the pressure at point A of the container becomes atmospheric is (the tank is of sufficient height) ?
12
Sep
The minimum horizontal acceleration of the container, so that the pressure at point A of the container becomes atmospheric is (the tank is of sufficient height) ? so that the pressure at point A of the container becomes atmospheric is (the tank is of sufficient height) ? The minimum horizontal acceleration of the container September [...]
A tank is filled up to a height 2H with a liquid and is placed on a platform of height H from the ground. The distance x from the ground where a small hole is punched to get the maximum range R is
12
Sep
A tank is filled up to a height 2H with a liquid and is placed on a platform of height H from the ground. The distance x from the ground where a small hole is punched to get the maximum range R is A tank is filled up to a height 2H with a liquid [...]
A solid uniform ball of volume V floats on the interface of two immiscible liquids (see the figure). The specific gravity of the upper liquid is ρ1 and that of lower one is ρ2 and the specific gravity of ball is ρ(ρ1
12
Sep
A solid uniform ball of volume V floats on the interface of two immiscible liquids (see the figure). The specific gravity of the upper liquid is ρ1 and that of lower one is ρ2 and the specific gravity of ball is ρ(ρ1 A spherical solid ball of volume V is made of a material of [...]
An ornament weighing 36 g in air weighs only 34 g in water. Assuming that some coppers is mixed with gold to prepare the ornament, find the amount of copper in it. Specific gravity of gold is 19.3 and that of copper is 8.9.
12
Sep
An ornament weighing 36 g in air weighs only 34 g in water. Assuming that some coppers is mixed with gold to prepare the ornament, find the amount of copper in it. Specific gravity of gold is 19.3 and that of copper is 8.9. An ornament weighing 36 g in air weighs only 34 g [...]
On heating water, bubbles being formed at the bottom of the vessel detach and rise. Take the bubbles to be spheres of radius R and making a circular contact of radius r with the bottom of the vessel. If r < < R, and the surface tension of water is T, value of r just before bubbles detach is: (density of water is ρw)
12
Sep
On heating water, bubbles being formed at the bottom of the vessel detach and rise. Take the bubbles to be spheres of radius R and making a circular contact of radius r with the bottom of the vessel. If r < < R, and the surface tension of water is T, value of r just [...]
Posted in:
Cengage JEE Mains Physics by B.M Sharma
,
Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity
,
Tags:
and the surface tension of water is T ,
bubbles being formed at the bottom of the vessel detach and rise. Take the bubbles to be spheres of radius R and making a circular contact of radius r with the bottom of the vessel. If r < < R ,
On heating water ,
value of r just before bubbles detach is: (density of water is ρw) ,
There is a circular tube in a vertical plane. Two liquids which do not mix and of densities d1 and d2 are filled in the tube. Each liquid subtends 90 degree angle at centre. Radius joining their interface makes an angle α with vertical . The ratio d1/d2 is
12
Sep
There is a circular tube in a vertical plane. Two liquids which do not mix and of densities d1 and d2 are filled in the tube. Each liquid subtends 90 degree angle at centre. Radius joining their interface makes an angle α with vertical . The ratio d1/d2 is A spherical solid ball of volume [...]
An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional 46 cm. What will be length of the air column above mercury in the tube now? (Atmospheric pressure = 76 cm of Hg)
12
Sep
An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional 46 cm. What will be length of the air column above mercury [...]