1.

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? A. `2 : pi`B. `1 : pi`C. `3 : pi`D. `2.7 : pi`

Answer» Correct Answer - A
Effective length of flat part = 2r
Effective length of curved part is `pi r`
So, required ratio is `2 : pi`


Discussion

No Comment Found

Related InterviewSolutions