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In a characteristic X-ray spectra of som...

In a characteristic X-ray spectra of some atom superimposed on continuous X-ray spectra :

A

P represents `K_(alpha)` line

B

Q represents `K_(beta)` line

C

Q and P represent `K_(alpha)` and `K_(beta)` lines respectively

D

Position of `K_(alpha)` and `K_(beta)` depend on the particular atom

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