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One end of a uniform glass capillary tub...

One end of a uniform glass capillary tube of radius r = 0.025 cm is immersed vertically in water to a depth h = 1 cm. The excess pressure in N/`m^2` required to blow an air bubble out of the tube is : [Surface tension of water `= 7 xx 10^(-2) Nm,` Density of water `= 10^3 kg m^(-3)` , Acceleration due to gravity = `10ms^(-2)`]

A

`0.0048 xx 10^(5)`

B

`0.0066 xx 10^(5)`

C

`1.0018 xx 10^(5)`

D

`1.0033 xx 10^(5)`

Text Solution

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The correct Answer is:
B
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