Physics
Fluid-Mechanics
Easy

Question

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.

  1. 1 half
  2. 1 fourth
  3. 1 third
  4. 1

The correct answer is: 1 fourth


    Related Questions to study

    Fluid-Mechanics
    Physics

    A container has two immiscible liquids of densities rho subscript 1 and rho subscript 2 open parentheses greater than rho subscript 1 close parentheses. 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 rho subscript 1 and rho subscript 2 open parentheses greater than rho subscript 1 close parentheses. 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
    Fluid-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
    Fluid-Mechanics
    Physics

    An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom P subscript 2 is the same as it is at the top P subscript 1 . If the velocity of the top v subscript 1 equals 2 straight m divided by straight s. Then the ratio of areas A subscript 1 over A subscript 2 is

    An ideal fluid flows in the pipe as shown in the figure. The pressure in the fluid at the bottom P subscript 2 is the same as it is at the top P subscript 1 . If the velocity of the top v subscript 1 equals 2 straight m divided by straight s. Then the ratio of areas A subscript 1 over A subscript 2 is

    PhysicsFluid-Mechanics
    parallel
    Fluid-Mechanics
    Physics

    straight A space tank space is space filled space with space water space of space density space 10 cubed KG divided by straight m cubed space space and space oil space of space density space space 9 cross times 10 squared kg divided by straight m cubed. space
The space height space of space water space layer space is space 1 space straight m space and space that space of space the space oil space layer space is space 4 space straight m. space
The space velocity space of space efflux space from space an space opening space in space the space bottom space of space the space tank space is

    straight A space tank space is space filled space with space water space of space density space 10 cubed KG divided by straight m cubed space space and space oil space of space density space space 9 cross times 10 squared kg divided by straight m cubed. space
The space height space of space water space layer space is space 1 space straight m space and space that space of space the space oil space layer space is space 4 space straight m. space
The space velocity space of space efflux space from space an space opening space in space the space bottom space of space the space tank space is

    PhysicsFluid-Mechanics
    Fluid-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
    Fluid-Mechanics
    Physics

    Three space liquids space having space densities space space rho subscript 1 comma rho subscript 2 space and space space rho subscript 3 space space space are space filled space in space straight a space straight U minus tube. space
Length space of space each space liquid space column space is space equal space to space straight I space rho subscript 1 greater than rho subscript 2 greater than rho subscript 3 space space space and space liquids space remain space at space rest space left parenthesis relative space to space the space tube right parenthesis space in
space the space position space shown space in space the space figure. space It space is space possible space that

    Three space liquids space having space densities space space rho subscript 1 comma rho subscript 2 space and space space rho subscript 3 space space space are space filled space in space straight a space straight U minus tube. space
Length space of space each space liquid space column space is space equal space to space straight I space rho subscript 1 greater than rho subscript 2 greater than rho subscript 3 space space space and space liquids space remain space at space rest space left parenthesis relative space to space the space tube right parenthesis space in
space the space position space shown space in space the space figure. space It space is space possible space that

    PhysicsFluid-Mechanics
    parallel
    Fluid-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
    Fluid-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
    Fluid-Mechanics
    Physics

    A solid cone of height H and base radius H/2 floats in a liquid of density rho.
    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 ( P subscript 0atmospheric pressure)

    A solid cone of height H and base radius H/2 floats in a liquid of density rho.
    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 ( P subscript 0atmospheric pressure)

    PhysicsFluid-Mechanics
    parallel
    Fluid-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
    Fluid-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
    Fluid-Mechanics
    Physics

    A cylinder containing water up to a height of 25 cm has a hole of cross-section 1 fourth c m squared  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 1 fourth c m squared  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
    parallel
    Fluid-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
    Fluid-Mechanics
    Physics

    There is a hole of area 1 over 25 cm squared  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 1 over 25 cm squared  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
    Fluid-Mechanics
    Physics

    A water tank placed on the floor has two small holes, pinched in the vertical wall, one above the other. The holes are 3.3 cm and 4.7 cm above the floor. If the jets of water issuing out from the holes hit the floor at the same point on the floor, then the height of water in the tank is

    A water tank placed on the floor has two small holes, pinched in the vertical wall, one above the other. The holes are 3.3 cm and 4.7 cm above the floor. If the jets of water issuing out from the holes hit the floor at the same point on the floor, then the height of water in the tank is

    PhysicsFluid-Mechanics
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.