A liquid is contained in a vertical tube...

A liquid is contained in a vertical tube of semi-circular cross-section. The angle of contact is zero fig. What is the ratio of the force of surface tension on the curved part and the flat part of the tube?

`2 : pi`

`1 : pi`

`3 : pi`

`2.7 : pi`

Text Solution

Verified by Experts

The correct Answer is:

Effective length of flat part = 2r
Effective length of curved part is `pi r`
So, required ratio is `2 : pi`

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