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If the excess pressure inside a soap bub...

If the excess pressure inside a soap bubble is balanced by an oil column of height 2 mm, then the surface tension of soap solution will be(r=1cm , density of oil =0.8g/cm 3 ``)

A

`4 Nm^(-1)`

B

`4xx10 ^(-1)Nm^(-1)`

C

`4xx10 ^(-2)Nm^(-1)`

D

`4xx10 ^(-3)Nm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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