Mechanical Prop...

A thin liquid film formed between a U - shaped wire and a light slider supports a weight of 1.5 × 10² N(See figure). The length of the slider is 30 cm and its weight negligible. The surface tension of the liquid film is

Energy needed in breaking a drop of radius R into n drops of radii r is given by

The potential energy of a molecule increases when it is brought to the surface from the interior of a liquid because

Work done is splitting a drop of water of 1 mm radius into 10⁶ droplets is (Surface tension of water = 72 × 10^–3 J/m²)

The amount of work done in blowing a soap bubble such that its diameter increases from d to D is (T = Surface tension of the solution)

If work W is done in blowing a bubble of radius R from a soap solution, then the work done in blowing a bubble of radius 2R from the same solution is

If two identical mercury drops are combined to form a single drop, then its temperature will

The surface tension of a liquid at its boiling point

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