Physics
Fluid-Mechanics
Easy
Question
Work done in splitting a drop of water of 1 mm radius into 64 droplets is (Surface tension of water is 72 10–3J/m2)
The correct answer is:
Related Questions to study
Physics
There is an air bubble of radius R inside a drop of water of radius 3R. Find the ratio of gauge pressure at point B to that at point A.
There is an air bubble of radius R inside a drop of water of radius 3R. Find the ratio of gauge pressure at point B to that at point A.
PhysicsFluid-Mechanics
Physics
A container has two immiscible liquids of densities and . A capillary tube of radius r is inserted in the liquid so that its bottom reaches up to the denser liquid. The denser liquid rises in the capillary and attains a height h from the interface of the liquids, which is equal to the column length of the lighter liquid. Assuming angle of contact to be zero, the surface tension of heavier liquid is
A container has two immiscible liquids of densities and . A capillary tube of radius r is inserted in the liquid so that its bottom reaches up to the denser liquid. The denser liquid rises in the capillary and attains a height h from the interface of the liquids, which is equal to the column length of the lighter liquid. Assuming angle of contact to be zero, the surface tension of heavier liquid is
PhysicsFluid-Mechanics
Physics
An open tank 10 m long and 2 m deep is filled up to 1.5 m height of oil of specific gravity 0.82. The tank is uniformly accelerated along its length from rest to a speed of 20 m/s horizontally. The shortest time in which the speed may be attained without spilling any oil is
An open tank 10 m long and 2 m deep is filled up to 1.5 m height of oil of specific gravity 0.82. The tank is uniformly accelerated along its length from rest to a speed of 20 m/s horizontally. The shortest time in which the speed may be attained without spilling any oil is
PhysicsFluid-Mechanics
Physics
An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom is the same as it is at the top . If the velocity of the top . Then the ratio of areas is
An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom is the same as it is at the top . If the velocity of the top . Then the ratio of areas is
PhysicsFluid-Mechanics
Physics
PhysicsFluid-Mechanics
Physics
Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube H, what will happen to the liquid column in the capillary, tube?
Figure shows a capillary tube C dipped in a liquid that wets it. The liquid rises to a point A. If we blow air through the horizontal tube H, what will happen to the liquid column in the capillary, tube?
PhysicsFluid-Mechanics
Physics
PhysicsFluid-Mechanics
Physics
We have two different liquids A and B whose relative densities are 0.75 and 1.0, respectively.
If we dip solid objects P and Q having relative densities 0.6 and 0.9 in these liquids, then
We have two different liquids A and B whose relative densities are 0.75 and 1.0, respectively.
If we dip solid objects P and Q having relative densities 0.6 and 0.9 in these liquids, then
PhysicsFluid-Mechanics
Physics
In a U-tube in which the cross-sectional area of the limb on the left is one-quarter, the limb on the right contains mercury (density 13.6 g/cm3), and the level of mercury in the narrow limb is at a distance of 36 cm from the upper end of the tube. What will be the rise in the level of mercury in the right limb if the left limb is filled to the top with water?
In a U-tube in which the cross-sectional area of the limb on the left is one-quarter, the limb on the right contains mercury (density 13.6 g/cm3), and the level of mercury in the narrow limb is at a distance of 36 cm from the upper end of the tube. What will be the rise in the level of mercury in the right limb if the left limb is filled to the top with water?
PhysicsFluid-Mechanics
Physics
A solid cone of height H and base radius H/2 floats in a liquid of density .
It is hanging from the ceiling with the help of a string.The force by the fluid on the curved surface of the cone is ( atmospheric pressure)
A solid cone of height H and base radius H/2 floats in a liquid of density .
It is hanging from the ceiling with the help of a string.The force by the fluid on the curved surface of the cone is ( atmospheric pressure)
PhysicsFluid-Mechanics
Physics
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)
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)
PhysicsFluid-Mechanics
Physics
A tank is filled up to a height 2 H 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 2 H 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
PhysicsFluid-Mechanics
Physics
A cylinder containing water up to a height of 25 cm has a hole of cross-section in its bottom. It is counterpoised in a balance. What is the initial change in the balancing weight when water begins to flow out?
A cylinder containing water up to a height of 25 cm has a hole of cross-section in its bottom. It is counterpoised in a balance. What is the initial change in the balancing weight when water begins to flow out?
PhysicsFluid-Mechanics
Physics
In figure, block A hangs by a cord from spring balance D and it submerged in a liquid C contained in a beaker B. The mass of the beaker is 1 kg. The mass of the liquid is 1.5 kq. Balance D reads 7.5 kg. The volume of block A is 0.003 m3. The mass per unit volume of the liquid is
In figure, block A hangs by a cord from spring balance D and it submerged in a liquid C contained in a beaker B. The mass of the beaker is 1 kg. The mass of the liquid is 1.5 kq. Balance D reads 7.5 kg. The volume of block A is 0.003 m3. The mass per unit volume of the liquid is
PhysicsFluid-Mechanics
Physics
There is a hole of area in the bottom of a cylindrical vessel containing fluid up to height h. The liquid flows out in time t. If the liquid were filled in the vessel up to height 4 h, then it would flow out in time
There is a hole of area in the bottom of a cylindrical vessel containing fluid up to height h. The liquid flows out in time t. If the liquid were filled in the vessel up to height 4 h, then it would flow out in time
PhysicsFluid-Mechanics