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Question: Answered & Verified by Expert
$K_{\alpha}$ and $K_{\beta}$ X-rays are emitted when there is a transition of electron between the levels
PhysicsCapacitanceVITEEEVITEEE 2008
Options:
  • A $\mathrm{n}=2$ to $\mathrm{n}=1$ and $\mathrm{n}=3$ to $\mathrm{n}=1$ respectively
  • B $\mathrm{n}=2$ to $\mathrm{n}=1$ and $\mathrm{n}=3$ to $\mathrm{n}=2$ respectively
  • C $\mathrm{n}=3$ to $\mathrm{n}=2$ and $\mathrm{n}=4$ to $\mathrm{n}=2$ respectively
  • D $\mathrm{n}=3$ to $\mathrm{n}=2$ and $\mathrm{n}=4$ to $\mathrm{n}=3$ respectively
Solution:
2491 Upvotes Verified Answer
The correct answer is: $\mathrm{n}=2$ to $\mathrm{n}=1$ and $\mathrm{n}=3$ to $\mathrm{n}=1$ respectively
When electron jumps from the level $\mathrm{n}=2$ to the level $\mathrm{n}=1, \mathrm{~K}_{\alpha} \mathrm{x}-$ rays are emitted. Similarly, $\mathrm{K}_{3}$ x-rays are emitted when there is atransition of electron from the level $\mathrm{n}=3$ to the level $\mathrm{n}=1$. X-ray spectra has been shown below.

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