Questions
Consider a vertical parallel of semi-circular cross-section dipped in a liquid. Assume that the wetting of the tube is complete. The force of surface tension on the flat part and on curved part of the tube are in the ratio
detailed solution
Correct option is A
Effective length of flat part = 2rEffective length of curved part is πrF = σlSo, required ratio is 2 : π.Talk to our academic expert!
Similar Questions
Consider the following statements.
(A) A large force is required to draw apart normally two glass plates enclosing a thin water film.
(B) Water works as glue and sticks two glass plates
Select the correct option.
(a) (A) is false, But (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true, But (B) is false.
(d) Both (A) and (B) are false.
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