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JEE Main2003PhysicsUnits and DimensionsActual

The physical quantities not having same dimensions are

Options

  1. Atorque and work
  2. Bmomentum and Planck's constant
  3. Cstress and Young's modulus
  4. Dspeed and ( ₀ ₀ )^ -1 / 2

Correct answer

B. momentum and Planck's constant

Step-by-step solution

[ momentum ]=[ M ][ L ] [ T ⁻¹ ]= [ MLT ⁻¹ ] (Planck's Constant) = E u = [ M ] [ LT ⁻¹ ]^2 ~T ⁻¹ = ML ^2 ~T ⁻¹

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