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An L-shell electron (Binding Energy = 26 keV) is removed from an atom that has an M-shell Binding Energy of 4 keV and an N-shell Binding Energy of 1 keV. If a free electron fills the vacancy in the L-shell, the characteristic x-ray produced will have an energy of

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Answer:

26 keV

Explanation:

The electron is being ejected from the L -shell which has a binding energy of 26 keV.

Now the electron is being added to fill the vacancy in the L shell. Since, the binding the energy of the electron for the L-shell is 26 keV, so the energy produced is also equal to this amount of energy.

So, the characteristic x-ray produced will have an energy of 26 keV.

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