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The energy of K-electron in tungsten is ...

The energy of K-electron in tungsten is -20.0 keV and of an L-electron is -2.0 ke V. Find the wavelength of X-rays emitted when an electron jumps from L - shell to K-shell.

A

0.3443 Å

B

0.6887 Å

C

1.3982 Å

D

2.78 Å

Text Solution

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The correct Answer is:
B
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