The energy of a tungsten atom with a vacancy in \( L \) shell is \(...

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The energy of a tungsten atom with a vacancy in \( L \) shell is \( 11.3 \mathrm{keV} \). Wavelength of \( K_{\alpha} \) photon for
\( \mathrm{P} \) tungsten is \( 21.3 \mathrm{pm} \). If a potential difference of \( 62 \mathrm{kV} \)

W is applied across the \( X \)-rays tube following characteristic \( \mathrm{x} \)-rays will be produced.
(1) \( K, L \) series
(2) Only \( K_{\alpha} \& L \) series
(3) Only \( L \) series
(4) None
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