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The two elements have their atomic numbe...

The two elements have their atomic numbers as `Z_1` and `Z_2` The ratio of the wavelength `lambda_1`and `lambda_2` corresponding to their`K_alpha`lines is

A

`((Z_2-1))/((Z_1-1))`

B

`Z_1/Z_2`

C

`Z_2/Z_1`

D

`((Z_2-1)^2)/(Z_1-1)^2`

Text Solution

Verified by Experts

The correct Answer is:
d
According to Moseley 's law ,
Frequnecy of X-rays V `prop`(Z-1)^(2)`
Wavelength ,`lambda prop `(1)/(Z-1)^(2)`
`(lambda_(1)/lambda_(2))=((Z_(2)-1)^(2))/(Z_(1)-1)^(2)`
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