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Two soap bubble A and B are kept in a...

Two soap bubble A and B are kept in a closed chamber where the air is maintained at pressure 8 `Nm^2` . The radii of bubbles A and B are 2cm and 4cm respectively . Surface tension of the soap -water used to make bubble is 0.04 N/m. find the ratio `n_B//n_A` , where `n_A and n_B` are the number of moles of air in bubbles A and B ,respectively . [Neglect the effect of gravity . ]

A

4

B

5

C

8

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
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