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Let `lambda_(alpha'), lambda_(beta),and lambda'_(alpha)` denote the wavelength of the X-ray of the `K_(alpha), K_(beta), and L_(alpha)` lines in the characteristic X-rays for a metal. Then.

A

`(1)/(lambda_(beta))=(1)/(lambda_(alpha))+(1)/(lambda’_(alpha))`

B

`(1)/( lambda’_(alpha))=(1)/(lambda_(alpha))+(1)/( lambda_(beta))`

C

`(1)/(lambda_(alpha))=(1)/(lambda_(beta))+(1)/(lambda'_(alpha))`

D

`lambda_(alpha)= lambda_(beta)+ lambda’_(alpha)`

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A
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