JEE Main20254 Apr 2025Evening ShiftPhysicsUnits and DimensionsActual
Given below are two statements : Statement (I) : The dimensions of Planck's constant and angular momentum are same. Statement (II) : In Bohr's model electron revolve around the nucleus only in those orbits for which angular momentum is integral multiple of Planck's constant. In the light of the above statements, choose the most appropriate answer from the options given below :
Options
- ABoth Statement I and Statement II are correct
- BStatement I is incorrect but Statement II is correct
- CStatement I is correct but Statement II is incorrect
- DBoth Statement I and Statement II are incorrect
Correct answer
C. Statement I is correct but Statement II is incorrect
Step-by-step solution
aligned & E = hf & ML ^2 ~T ⁻²=[ h ] [ T ⁻¹ ] & [ h ]= [ ML ^2 ~T ⁻¹ ] & L =[ MVR ]= [ ML ^2 ~T ⁻¹ ] & L = nh 2 aligned L is integral multiple of h 2