Verified Solution • 2025–26 Session moderate

QPage 383: Q1: Bohr's Model and Physics of the Atom Solutions — HC Verma: Concepts of Physics - Volume 2

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often write the Bohr angular‑momentum condition as $L=n h$ and miss the $2\pi$ factor, mixing up Planck’s constant $h$ with the reduced constant $\hbar$. Remember the postulate is $L=n\hbar=n\,h/(2\pi)$, so for $n=1$ the minimum value is $h/(2\pi)$.

The minimum orbital angular momentum of the electron in a hydrogen atom is

Multiple Choice Options

  • A hh
  • B h/2h/2
  • C h/2πh/2\pi
  • D h/λh/\lambda

Step-by-Step Verified Solution

**Answer:** (c) h/2�. **Step-by-Step Explanation:** The minimum orbital angular momentum of an electron in a hydrogen atom is _ = h/2� (for n=1).

All Questions in this Chapter

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