Allowed angular momenta are integral multiples of h divided by:
AFour pi
BSix pi
CEight pi
DTwo pi
Answer & Solution
Correct answer: D. Two pi
1. Planck's constant sets the scale of the quantisation.
2. It is divided by a fixed factor in the condition.
3. That factor is two pi.
_Source: NCERT Class 12 Physics Part II, Chapter 12, Atoms._
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