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A liquid is contain in a vertical tube o...

A liquid is contain in a vertical tube of semicircular cross section figure. The contact angle is zero. The force of surface tension on the curved part and on the flat part are in ratio

A

`2 : pi`

B

`1 : pi`

C

`3 : pi`

D

`2.7 : pi`

Text Solution

Verified by Experts

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