Two soap bubbles one of radius 3cm and other of radius 4cm each coaless in vacuum under isothermal conditons. Calculate the radius of the bubble formed ?

Explanation

To solve the problem of finding the radius of the bubble formed when two soap bubbles with radii of 3 cm and 4 cm coalesce in vacuum under isothermal conditions, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept**: When two soap bubbles coalesce, the total pressure inside the bubbles and the volume must be conserved. The pressure inside a soap bubble is given by the formula:
\[ P = P_0 + \frac{4T}{r} \]
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