Class XI Physics Mechanics of Fluids 6

If more air is pushed in a soap bubble, the pressure in it–

Two spherical soap bubbles of radii r₁ and r₂ in vacuum coalesce under isothermal conditions. The resulting bubble has a radius equal to–

In a surface tension experiment with a capillary tube water rises upto 0.1 m. If the same experiment is repeated on an artificial satellite, which is revolving around the earth, water will rise in the capillary tube upto a height of–

A soap bubble of radius r₁ and another soap bubble of radius r₂(>r₁) are brought together so that they have a common interface. The radius of the interface is–

The drops of a liquid of density ρ are swimming half immersed inside a liquid of density σ. If the surface tension of the liquid is T, then the radius R of the drop is-

A liquid drop of radius ‘r’ is falling through air then the power of heat produced due to air drag at terminal velocity is proportional to radius of drop as:

A tank full of water has a small hole at its bottom. Let t₁ be the time taken to empty first half of the tank and t₂ be the time needed to empty rest half of the tank, then–

The figure shows a semi-cylindrical massless gate pivoted at the point O holding a stationary liquid of density ρ. A horizontal force F is applied at its lowest position to keep it stationary. The magnitude of the force is -