Solved: The Bohr model, although not strictly applicable,
Chapter 30, Problem 30.86(choose chapter or problem)
The Bohr model, although not strictly applicable, can be used to estimate the minimum energy Emin that an incoming electron must have in an X-ray tube in order to knock a K-shell electron entirely out of an atom in the metal target. The K X-ray wavelength of metal A is 2.0 times the K X-ray wavelength of metal B. What is the ratio of Emin, A for metal A to Emin, B for metal B? *
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