Q67 / 75 · JEE Main 2025 (29 Jan Shift 1) · Physics

The pair of physical quantities not having same dimensions is :

  • A
    Pressure and Young's modulus
  • Correct answer
    B
    Surface tension and impulse
  • C
    Torque and energy
  • D
    Angular momentum and Planck's constant

Solution

[Angular momentum $]=\mathrm{ML}^2 \mathrm{~T}^{-1}$ [Planck's Constant] $=\mathrm{ML}^2 \mathrm{~T}^{-1}$ [Torque] $=\mathrm{ML}^2 \mathrm{~T}^{-2}$ [Energy] $=\mathrm{ML}^2 \mathrm{~T}^{-2}$ [Surface tension] $=\mathrm{MT}^{-2}$ [Impulse]= MLT $^{-1}$ [Pressure $]=\mathrm{ML}^{-1} \mathrm{~T}^{-2}$ [Young's modulus] $=\mathrm{ML}^{-1} \mathrm{~T}^{-2}$

Hence, the correct answer is option: 'B'.

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