JEE Main 2023PhysicsUnits and DimensionsEasyMCQ

JEE Main 2023 — Units and Dimensions Question with Solution

JEE Main 2023 (31 Jan Shift 2)

Question

Match List I with List II

  List I   List II
A Angular momentum I ML2T-2
B Torque II ML-2T-2
C Stress III ML2T-1
D Pressure gradient IV ML-1T-2

Choose the correct answer from the options given below :

Choose an option

Show full solutionCorrect option: B
Correct answer
BA-III, B-I, C-IV, D-II

Step-by-step explanation

As we know, angular momentum is given by, L→=r→×p→⇒L=M0 L1 T0M1 L1 T-1

=M1 L2 T-1

Torque is given by, 

τ→=r→×F→⇒τ=L1MLT-2

=ML2 T-2

Also, Stress ≡ Pressure =FA

Hence, [Stress] =ML-1 T-2

Pressure Gradient =dPdx 

Therefore, [Pressure Gradient]=ML-2 T-2

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About this question

This is a previous-year question from JEE Main 2023, covering the Units and Dimensions 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.