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The excess pressure inside a spherical s...

The excess pressure inside a spherical soap bubble of radius lcm is balanced by a column of oil (Sp.gr =0.8),2mm high. The surface tension of the bubble is :

A

3.92 N/m

B

0.0392 N/m

C

0.392 N/m

D

0.00392N/m

Text Solution

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The correct Answer is:
B
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