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JEE Main 2021 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 27 August 2021, Shift 2, Physics Q15

Question 15 of 90 in this shift, Physics question 15 of 30, Section A.

If force (F), length (L) and time (T) are taken as the fundamental quantities. Then what will be the dimension of density :

(1) $[FL^{-3}T^{3}]$
(2) $[FL^{-5}T^{2}]$
(3) $[FL^{-4}T^{2}]$ Official answer
(4) $[FL^{-3}T^{2}]$

Official answer

Option 3

NTA final key.

Chapter: Units and Measurements
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

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 108 of the 174 JEE Main shifts held from 2017 to 2026.