In an X-Ray Machine,electrons Are Accelerated and Then Fired So

question 28

Multiple Choice

In an x-ray machine,electrons are accelerated and then fired so that they are incident on a metal target.Which part of the process produces the characteristic x-ray spectra?

• A)The incident electron loses energy.
• B)The incident electron knocks an electron out of one of the metal atoms.
• C)A vacancy in an energy level in a metal atom is filled.
• D)The incident electron emits an x-ray.

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