Two soap bubbles are blown. In first soap bubble excess pressure is 4 times of the second soap bubble. The ratio of the radii of the first and second soap bubble is

Options

A. `1:4`
B. `1:2`
C. `2:1`
D. `4:1`

Answer

A

Explanation

`P_(1)=4P_(2)`
` (P_(1))/(P_(2))= (r_(2))/(r_(1))`
` (4P_(2))/(P_(2)) = (r_(2))/(r_(1))`
` (r_(2))/(r_(1))=4/1 " " :. (r_(1))/(r_(2)) = 1/4 `