Mechanical Prop...

If σ be the surface tension, the work done in breaking a big drop of radius R in n drops of equal radius is

When 10⁶ small drops coalesce to make a new larger drop then the drop

8000 identical water drops are combined to form a big drop. Then, the ratio of the final surface energy to the initial surface energy of all the drops together is

The relation between surface tension T, surface area A and surface energy E is given by

If a water drop is kept between two glass plates, then its shape is

The excess pressure in a bubble of radius R of a gas in a liquid of surface tension S is

If two soap bubbles of different radii are in communication with each other then

The excess pressure inside one soap bubble is three times that inside a second soap bubble, then the ratio of their surface areas is

When two soap bubbles of radii r₁ and r₂ (r₂ > r₁) coalesce, the radius of curvature of common surface is

If the surface tension of a soap solution is 0.03 MKS units, then the excess of pressure inside a soap bubble of diameter 6 mm over the atmospheric pressure will be