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A soap bubble in air (two surfaces) has ...

A soap bubble in air (two surfaces) has surface tension` 0.03 Nm^(-1).` Find the gauge pressure inside a bubble of diameter 30 mm.

A

2 Pa

B

4 Pa

C

16 Pa

D

8 Pa

Text Solution

Verified by Experts

The correct Answer is:
D
Gauge pressure `= ( 4 T)/(R) = ( 4 xx 0.03)/( (30)/(20) xx 10 ^(-3)) = 8 Pa `
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