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NEET
Exam
NEET
Subject
Physics
Chapter
Units and Dimensions

NEET · Physics · Units and Dimensions

Which of the following pairs of physical quantities does NOT have...

Which of the following pairs of physical quantities does NOT have the same dimensional formula?

Options

  1. AWork and Torque
  2. BAngular momentum and Planck's constant
  3. CTension and Surface tension
  4. DImpulse and Momentum

Correct answer

C. Tension and Surface tension

Step-by-step solution

Dimensional formula of Work =[ML2T−2]= [\mathrm{ML}^{2}\mathrm{T}^{-2}]
Dimensional formula of Torque =[ML2T−2]= [\mathrm{ML}^{2}\mathrm{T}^{-2}]

Dimensional formula of Angular momentum =[ML2T−1]= [\mathrm{ML}^{2}\mathrm{T}^{-1}]
Dimensional formula of Planck's constant =[ML2T−1]= [\mathrm{ML}^{2}\mathrm{T}^{-1}]

Dimensional formula of Impulse =[MLT−1]= [\mathrm{MLT}^{-1}]
Dimensional formula of Momentum =[MLT−1]= [\mathrm{MLT}^{-1}]

Dimensional formula of Tension (which is a Force) =[MLT−2]= [\mathrm{MLT}^{-2}]
Dimensional formula of Surface tension (Force per unit length) =[MT−2]= [\mathrm{MT}^{-2}]

Thus, Tension and Surface tension do not share the same dimensional formula.

Answer: Tension and Surface tension
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