The energy of K-alpha characteristic X-Ray is:

E_{k} - E_{l}

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$E_{l} - E_{k}$

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$E_{k}$

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$E_{l}$

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Solution

The correct option is A $E_{k} - E_{l}$
A $K_{α}$ characteristic x-ray gets emitted when an electron from L-shell jumps to K-shell to fill the vacancy created in it. Hence an atom goes to an excited state of $E_{L}$ from $E_{K} .$ So, the energy difference is $E_{K} - E_{L},$ which is at the same time the energy of $K_{α}$ characteristic X-ray.

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The energy of K-alpha characteristic X-Ray is:

The wavelength of L-alpha characteristic X-Ray is :

eV .

40 keV .)

K_{α}

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