Q132 / 150 · MHT CET 2019 (Shift 2) · Physics

The ratio of the dimensions of Planck’s constant of that of moment of inertia is the dimension of

  • A
    Angular momentum
  • B
    Velocity
  • Correct answer
    C
    Frequency
  • D
    Time

Solution

The dimensions of Planck’s constant,
h=Ev=ML2T-2M0L0T-1=ML2T-1
And that moment of inertia,
l=MR2=ML2=ML2T0
∴hl=ML2T-1ML2T0=T-1=v

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

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