Test SeriesFree PYQsExamsPricing

JEE Main Physics question

PhysicsMechanical Properties of FluidsJEE Main

The diameter of a gas bubble formed at the bottom of a pond of depth is . As the bubble rises to the surface, its diameter becomes larger. Given the surface tension of water and standard atmospheric pressure, find the depth of the pond (in metres).

Answer: 5

Solution

Using Boyle's law for the trapped gas together with the excess (Laplace) pressure due to surface tension at each depth, and equating $+ρ_w

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-155033