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Saturday, 31 October

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JEE Main 2020 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 2 September 2020, Shift 2, Physics Q1

Question 1 of 75 in this shift, Physics question 1 of 25.

If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for energy is :

(1) $[P^{2}AT^{-2}]$
(2) $[PA^{-1}T^{-2}]$
(3) $[PA^{1/2}T^{-1}]$ Official answer
(4) $[P^{1/2}AT^{-1}]$

Official answer

Option 3

NTA final key (Sep 2020).

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.