List of top Physics Questions on Surface Tension asked in AIIMS

The ratio of radius of two bubbles is $2:1$. What is the ratio excess pressure inside them?

A small drop of mercury is spherical but bigger drops are oval in shape. surface tension of liquid decreases with increase in temperature.

The radius of a soap bubble is $r$ and the surface tension of soap solution is $T$. Keeping the temperature constant, the extra energy needed to double the radius of the soap bubble by blowing, is