JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 25 July 2022, Shift 1, Physics Q31

Question 31 of 90 in this shift, Physics question 1 of 30, Section A.

If momentum [P], area [A] and time [T] are taken as fundamental quantities, then the dimensional formula for coefficient of viscosity is :

(1) $[\mathrm{P\,A^{-1}\,T^{0}}]$ Official answer
(2) $[\mathrm{P\,A\,T^{-1}}]$
(3) $[\mathrm{P\,A^{-1}\,T}]$
(4) $[\mathrm{P\,A^{-1}\,T^{-1}}]$

Official answer

Option 1

NTA final key (2022 Session 2).

Chapter: Units and Measurements
Topic: Viscosity
Idea tested: Units and Dimensions of Viscosity

Same topic in other shifts

All Viscosity questions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.