If an electron in the 'K' shell is removed and an electron from the 'L' shell jumps to occupy the hole in the 'K' shell, it emits a photon of energy:
Correct answer: A. hfKα = EL - EK
- A. hfKα = EL - EK
- B. hc = EL - EK
- C. h/λKα = EL - EK
- D. hfKα = EK - EL
Explanation
When an electron is removed from the K-shell, leaving a hole, an electron from a higher energy level (L-shell in this case) can jump down to fill the gap, emitting a photon of energy equal to the difference in energy between the two levels. This is known as the characteristic X-ray emission.The energy of the emitted photon is given by the equation:hfKa = EL - Ek
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