Question

a glass tube of 1 mm bore is dipped vertically into a container of Mercury with its lower and 2 cm below the Mercury surface what must be the Gauge pressure of air in the tube to blow a hemispherical bubble at its lower end given density of Mercury 13600 kg metre per cube and surface tension of mercury is equal to 35 into 10 power minus 3 Newton per metre​

Answer 1

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Answer 2

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