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If the frequency of \( K_{\alpha}, K_{\beta} \) and \( L_{\alpha} X \)-rays for a
\( \mathrm{P} \) material are \( v_{K_{\alpha}}, v_{K_{\beta}}, v_{L_{\alpha}} \) respectively, then

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(1) \( v_{K_{\alpha}}=v_{K_{\beta}}+v_{L_{\alpha}} \)
(2) \( v_{L_{\alpha}}=v_{K_{\alpha}}+v_{K_{\beta}} \)
(3) \( v_{K_{\beta}}=v_{K_{\alpha}}+v_{L_{\alpha}} \)
(4) None of these
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