JEE Main 2013 — Mechanical Properties of Fluids Question with Solution
JEE Main 2013 (09 Apr Online)
Question
This question has Statement-1 and Statement- 2 . Of the four choices given after the Statements, choose the one that best describes the two Statetnents.
Statement-1: A capillary is dipped in a liquid and liquid rises to a height in it. As the temperature of the liquid is raised, the height increases (if the density of the liquid and the angle of contact remain the same).
Statement-2: Surface tension of a liquid decreases with the rise in its temperature.
Choose an option
Show full solutionCorrect option: B
Correct answer
BStatement-1 is false, Statement- 2 is true.
Step-by-step explanation
Surface tension of a liquid decreases with the rise in temperture. At the boiling point of liquid, surface tension is zero.
Capillary rise
As surface tension decreases with rise in temperature hence capillary rise also decreases.
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This is a previous-year question from JEE Main 2013, covering the Mechanical Properties of Fluids chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.