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Two soap bubbles of radii in the ratio o...

Two soap bubbles of radii in the ratio of 2 : 1. What is the ratio of excess pressure inside them?

A

`1:2`

B

`1:4`

C

`2:1 `

D

`4:1`

Text Solution

Verified by Experts

The correct Answer is:
A
`(Delta P_1)/(Delta P_2) = ( (4 sigma)/(r_1))/( (4sigma)/(r_2) ) = r_2/r_1 = 1/2`
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