A small soap bubble of radius $4\,cm$  is trapped inside another bubble of radius $6\,cm$ without any contact. Let $P_2$  be the pressure inside the inner bubble and $P_0$  the pressure outside the outer bubble. Radius of another bubble with pressure difference $P_2 - P_0$  between its inside and outside would be....... $cm$

Pressure inside two soap bubbles are $1.01$ and $1.02$ atmosphere, respectively. The ratio of their volumes is

Two soap bubbles of radii ${r_1}$ and ${r_2}$ equal to $4 \,cm $ and $5 \,cm $ are touching each other over a common surface ${S_1}{S_2}$ (shown in figure). Its radius will be ....... $cm$

Pressure inside a soap bubble is greater than the pressure outside by an amount :

(given : $\mathrm{R}=$ Radius of bubble, $\mathrm{S}=$ Surface tension of bubble)

The excess pressure in a soap bubble is thrice that in other one. Then the ratio of their volume is

A capillary tube of radius $r$ is dipped in a liquid of density $\rho$ and surface tension $S$. If the angle of contact is $\theta$, the pressure difference between the two surfaces in the beaker and the capillary