Exam-style question
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Explain the difference between continuous and characteristic X-ray spectra.
Model answer
What a good answer should say
- Continuous X-ray spectra are produced when high-energy electrons are decelerated upon hitting the target material, resulting in a broad range of photon energies.
- Characteristic X-ray spectra occur when electrons from inner shells of the target atoms are ejected, and higher-energy electrons fall into these lower energy states, emitting photons with specific energies unique to the element.
Explanation
Why this works
This answer effectively distinguishes between the two types of spectra, demonstrating an understanding of the underlying physical processes involved in X-ray production. It tests the student's ability to explain complex concepts clearly and accurately.
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