Basic Maths and Units and DimensionsHard
Question
Liquid rises to a height of 2cm in a capillary tube. The angle of contact between the solid and the liquid is zero. The tube is depressed more now so that the top of the capillary is only 1cm above the liquid then apparent angle of contact between the solid and liquid is :-
Options
A.0o
B.30o
C.60o
D.90o
∴ h ∝ cos θ
⇒ θ = 60°Topic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
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