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A

An atom with a vacancy has smaller energy than a neutral atom.

B

K X-ray is emitted when a hole makes a jump from the K shell to some other shell.

C

The wavelength of K X-ray is smaller than the wavelength of L X-ray of the same material.

D

The wavelength of `K_alpha` X-ray is smaller than the wavelength of `K_beta` X-ray of the same material.

Text Solution

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The correct Answer is:
B, C
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