Which of the Following Is NOT True for X-Ray Fluorescence

question 20

Multiple Choice

Which of the following is NOT true for X-ray fluorescence?

• A)The fluorescent X-ray photon has a lower energy than the original X-ray photon.
• B)The incoming X-ray knocks free an electron from the K,L,or M shells.
• C)The fluorescent X-ray photon is emitted when an outer shell electron falls into a shell closer to the nucleus.
• D)K X-rays original when L or M shell electrons fall into the K shell.
• E)K  and K  X-rays originate when L shell electrons transition to the K shell.

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