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k(a) wavelength emitted by an atom of a...

`k_(a) ` wavelength emitted by an atom of atomic number `Z= 11` is `lambda` find the atomic number for an atom that emils `k_(a)` radiation with wavelength `4 lambda`.

A

`Z=6`

B

`Z=4`

C

`Z=11`

D

`Z=44`

Text Solution

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The correct Answer is:
A
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