JEE Main 2012 — Mechanical Properties of Fluids Question with Solution
JEE Main 2012 (19 May Online)
Question
A large number of droplets, each of radius, coalesce to form a bigger drop of radius, . An engineer designs a machine so that the energy released in this process is converted into the kinetic energy of the drop. Velocity of the drop is ( surface tension, density)
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
When small droplets coelesce to form a bigger drop, energy released in this process is given by,
Where, radius of big drop
radius of small drop
surface tension
According to question
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This is a previous-year question from JEE Main 2012, 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.