The excess pressure inside a soap bubble is equal to 2 mm of kerosene (density 0.8 g cm –3 ). If the diameter of the bubble is 3.0 cm, the surface tension of soap solution is
Text Solution
Verified by ExpertsThe correct answer is:
D
⇒ 
= ρ g (2 mm)
⇒ 
= 9.8 × 6 = 58.8
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