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The lower end of a capillary tube is at ...

The lower end of a capillary tube is at a depth of `12 cm` and water rises `3 cm` in it. The mouth pressure required to blow an air bubble at the lower end will be `x cm` of water column, where `x` is

A

12

B

15

C

3

D

9

Text Solution

Verified by Experts

The correct Answer is:
B
Pressure due to 15 cm long liquid column needs to be balanced
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