Surface Tension...

A spherical drop of oil of radius 1 cm is broken into 1000 droplets of equal radii. If the surface tension of oil is 50 dynes/cm, the work done is 

If the surface tension of a liquid is T, the gain in surface energy for an increase in liquid surface by A is

The surface tension of a liquid at its boiling point

The surface tension of liquid is 0.5 N/m. If a film is held on a ring of area 0.02 m², its surface energy is

A liquid drop of diameter D breaks upto into 27 small drops of equal size. If the surface tension of the liquid is σ, then change in surface energy is 

One thousand small water drops of equal radii combine to form a big drop. The ratio of final surface energy to the total initial surface energy is

A big drop of radius R is formed by 1000 small droplets of water, then the radius of small drop is

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 

When two small bubbles join to form a bigger one, energy is

A film of water is formed between two straight parallel wires of length 10cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism, how much work will have to be done (Surface tension of water = 7.2 × 10⁻² N/m)