The pressure of air in a soap bubble of 0.7 cm diameter is 8 mm of water above the pressure outside. The surface tension of the soap solution is - VgyanHub

Question:

2.The pressure of air in a soap bubble of 0.7 cm diameter is 8 mm of water above the pressure outside. The surface tension of the soap solution is

Options :

a) 100 dyne/cm
b) 68.66 dyne/cm
c) 137 dyne/cm
d) 150 dyne/cm

Answer :

b) 68.66 dyne/cm

Answer Steps :

Solution :-

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