Describe an experiment to demonstrate the excess pressure inside a soap bubble.

The excess pressure inside a soap bubble is

Describe an experiment to demonstrate that air exerts pressure.

Give an experiment to demonstrate root pressure in a plant.

Design an experiment to demonstrate hydrotropism.

Give an experiment to demonstrate Hill's reaction.

The excess pressure inside a soap bubble is thrice the excess pressure inside a second soap bubble. What is the ratio between the volume of the first and the second bubble?

Variegated leaf experiment demonstrates that

The excess pressure inside a soap bubble is twice the excess pressurre inside a second soap bubble. The volume of the first bubble is n times the volume of the second where n is

Calculate the height of liquid column required to balance the excess pressure inside a soap bubble of radius 3 xx 10^(-3) m .The density of liquid is 900 kgm ^(-3) and the surface tension of soap solution is 30 xx 10^(-3) Nm^(-1) .

Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. If the excess pressure in a soap bubble is p , the excess pressure in an air bubble is