JEE Main 2021PhysicsUnits and DimensionsEasyMCQ

JEE Main 2021 — Units and Dimensions Question with Solution

JEE Main 2021 (31 Aug Shift 1)

Question

Match List - I with List - II.
  List - I   List - II
a Torque i MLT-1
b Impulse ii MT-2
c Tension iii ML2 T-2
d Surface Tension iv MLT-2

Choose the most appropriate answer from the option given below :

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Show full solutionCorrect option: B
Correct answer
B(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Step-by-step explanation

The torque is defined as, τ=⊥rFsinθ=ML2T-2, the formula of impulse, I=∆p=MLT-1 and tension, T=MLT-2 and the formula of surface tension is defined as force per unit length.s=Fl=MLT-2L=MT-2. 

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About this question

This is a previous-year question from JEE Main 2021, 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.