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In an X-ray tube, the voltage applied is...

In an X-ray tube, the voltage applied is `20 kV`. The energy required to remove an electron from`L shell is 19.9 ke V` In the X-rays emitted by the tube.

A

Minimum wavelength will be 62.1pm

B

Energy of the characterstic X-rays will be equalto or less than 19.9 KeV

C

`L_(alpha)` X-ray may be emitted

D

`L_(alpha)` X-raywillhaveenergy 19.9KeV

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