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JEE PHYSICS MCQ: ATOMS

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E1E_1 is energy of KαK_\alpha photon of aluminium, E2E_2 is energy of KβK_\beta photon of aluminium and E3E_3 is energy of KαK_\alpha photon from sodium, then the correct order of energies is given:
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Correct option: D
E2>E1>E3E_2 > E_1 > E_3
Option D (E2>E1>E3E_2 > E_1 > E_3) is correct because KβK_\beta photons have higher energy than KαK_\alpha photons for the same element, and the energy of KαK_\alpha photons increases with atomic number.

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