JEE Main 2019 — Mechanical Properties of Fluids Question with Solution
JEE Main 2019 (11 Jan Shift 1)
Question
A liquid of density is coming out of a hose pipe of radius a with horizontal speed and hits a mesh. of the liquid passes through the mesh unaffected. looses all of its momentum and comes back with the same speed. The resultant pressure on the mesh will be:
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Mass per unit time of the liquid = \rhoav Momentum per second carried by liquid
Net force due to bounced back liquid,
Net force due to stopped liquid, pav Total force,
Net pressure
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This is a previous-year question from JEE Main 2019, 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.