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The wavelength of K(alpha) line in coppe...

The wavelength of `K_(alpha)` line in copper is `1.54 Å`. The ionisation energy of `K` electron in copper in Joule is

A

`11.2xx10^(-27)`

B

`12.9 xx 10^(-16)`

C

`1.7 x 10^(-15)`

D

`10 xx 10^(-16)`

Text Solution

Verified by Experts

The correct Answer is:
B
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