AX-ray tube operates at an accelerating potential of \( 20 \mathrm{kV} \). Which of the followin...

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AX-ray tube operates at an accelerating potential of \( 20 \mathrm{kV} \). Which of the following wavelengths will be absent in the continuous spectrum of X-ray.
\( \mathrm{P} \)
(A) 12 pm
(B) \( 45 \mathrm{pm} \)
(C) \( 65 \mathrm{pm} \)
(D) \( 95 \mathrm{pm} \)
W.
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