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If the diameter of a soap bubble is 10 m...

If the diameter of a soap bubble is 10 mm and its surface tension is `0.04 Nm^-1`, find the excess pressure inside the bubble.

A

`2 pi xx 10^-6 J`

B

`4 pi xx 10^-6 J`

C

`6 pi xx 10^-6 J`

D

`8 pi xx 10^-6 J`

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