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Hrishant Goswami Grade: 10
        Find the excess pressure inside (a) a drop of mercury of radius 2 mm (b) a soap bubble of radius 4 mm and (c) an air bubble of radius 4 mm formed inside a tank of water. Surface tension of mercury, soap solution and water are 0.465 N m-1, 0.03 N m-1 and 0.076  N m-1 respectively.
3 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
474 Points
										Sol. a) P = 2THg/r  

b) P = 4Tg/r
c) P = 2Tg/r
3 years ago
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