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Two soap bubble of radii 3 mm and 4 mm a...

Two soap bubble of radii 3 mm and 4 mm are in contact radius of curvature of interface between those two bubbles is

A

1mm

B

7mm

C

12mm

D

4mm

Text Solution

Verified by Experts

The correct Answer is:
C
`r=(r_(1)r_(2))/(r_(2)-r_(1))`
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