If \( \lambda_{1} \) and \( \lambda_{2} \) are the wavelength of characteristic \( X \)-rays and...

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If \( \lambda_{1} \) and \( \lambda_{2} \) are the wavelength of characteristic \( X \)-rays and gamma rays respectively, then the relation between them is:
(A) \( \lambda_{1}=1 / \lambda_{2} \)
(B) \( \lambda_{1}=\lambda_{2} \)
(C) \( \lambda_{1}\lambda_{2} \)
(D) \( \lambda_{1}\lambda_{2} \)
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