Question 15. Pressure inside two soap bubbles is 1.01 and 1.02 atmospheres. ratio between their volume is
Correct option is C) Pressure × Radius = Surface Tension Here the pressure is Gauge Pressure, i.e the difference between absolute pressure and atmospheric pressure Hence ratio of gauge pressures is 1:2 Accordingly ratio of radii is 2:1 Since Volume∝radius³ Hence ratio of volumes is 8:1
