Establish an expression for excess pressure inside a liquid and drop. or Find the equation of pressure difference between the two surfaces of a spherical drop. What is the difference between this and soap bubbles? or The pressure excess inside a liquid drop is $P =$ $\frac{2 T}{r}$ and for a soap bubble the pressure excess is $P=\frac{4 T}{r}$, Prove it.
Prove that : (i) Inside the liquid the pressure is higher than on the open surface of the liquid. (ii) The pressure difference between any two points in a vertical line inside the liquid occurs only due to the effect of gravity.
Find the expression of pressure at any point inside the liquid and prove that $P \propto$ h. If the atmospheric pressure on the free surface of the liquid is Pa then find the total pressure on depth h from the free surface of the liquid.