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The wavelength of the Ka line for the ur...

The wavelength of the `K_a` line for the uranium is `(Z = 92) (R = 1.0973xx10^7m^(-1)`

A

`1.5 Å`

B

`0.5 Å`

C

`0.15 Å`

D

`2.0 Å`

Text Solution

Verified by Experts

The correct Answer is:
C
`(1)/(lambda) = R (Z -1)^2 ((1)/(n_1^2 ) - (1)/(n_2^2)`
For `K_alpha - line, n_1 =1 and n_2 =2`
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