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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
On curved surface ` sigma (pi r ) ` , On flat surface ` = sigma (2r ) `, Hence ratio ` = 2 : pi `
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