Dual Nature of Radiation and Matter

Question: The wavelength of ${K_\alpha }$ line in copper is 1.54 Å. The ionisation energy of K electron in copper in Joule is

1) $11.2 \times {10^{ - 27}}$

2) $12.9 \times {10^{ - 16}}$

3) $1.7 \times {10^{ - 15}}$

4) $10 \times {10^{ - 16}}$

Solution:

Explanation: No Explanation

X-Rays

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