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Figure shows K(alpha)& K(beta) X-rays al...

Figure shows `K_(alpha)`& `K_(beta)` X-rays along with continuous X-ray. Find the energy of `L_(alpha)` X-ray. (Use hc = 12420 evÅ)

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The correct Answer is:
`6.21 KeV`
`=E _(K beta) -E_(K alpha)=12420 ((1)/(1)-(1)/(2))`
`=(12420)/(2)=6110 Ev=6.21 KeV`.
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