Bohr velocityHardQuestion 600229
Question
The velocity of an electron in the nth orbit of hydrogen is proportional to:
- An
- B1/nCorrect
- Cn²
- D1/n²
Correct answer
1/n
Explanation
From Bohr's quantisation: v = Ze²/(nħ) ∝ 1/n. As n increases, orbital radius grows and speed decreases.