What should be the diameter of a water drop so that the excess pressure inside it is `80 N//m^2` ? (surface tension of water = `7.2 xx 10^-2 N//m`)

What should be the diameter of a water drop so that the excess pressure inside it is 80N/m^2 ?

What should be the diameter of a soap bubble , in order that the excess pressure inside it is 51.2 N/m^2 ?

An air bubble of radius 0.1 mm is ready to leave the surface of taken. Then the pressure inside in Nm^-2 is (Surface tension of water: 70xx10^-3 N//m , 1 atm = 1xx10^5 N//m^2)

The excess pressure inside the drop of a liquid of surface tension T and radius of drop r is

A liquid of density 850 kg//m^3 has an unknown surface tension . However , it is observed that if rises three times high in a capillary tube as compared to pure water . If the contact angles for both are same , then the surface tension of liquid is (Surface tension of water = 7.0xx10^(-2) N//m )

The excess pressure in a soap bubble of diameter 8 cm and surface tension 0.02 N/m, is

When one end of the capillary is dipped in water, the height of water column is 'h' . The upward force of 105 dyne due to surface tension is balanced by the force due to the weight of water column . The inner circumference of the capillary is (Surface tension of water = 7 xx 10^(-2) N//m )

An air bubble of radius 0.2 mm is situated just below the water surface. Calculate the gauge pressure. Surface tension of water = 7.2 xx 10^-2 N//m .

A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7 xx 10^(-2) N//m . The diameter of the hole is