Q.

The surface tension of soap solution is 0.05Nm-1. If the diameter of the soap bubble is 4 cm. The excess pressure inside the soap bubble over that of outside is (in Pascal)

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a

10

b

1.0

c

0.1

d

0.25

answer is A.

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Detailed Solution

ΔP=4Tr
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The surface tension of soap solution is 0.05Nm-1. If the diameter of the soap bubble is 4 cm. The excess pressure inside the soap bubble over that of outside is (in Pascal)