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The wavelength of k(alpha) X- rays prod...

The wavelength of `k_(alpha) ` X- rays produced by an X - rays tube is `0.76 Å` . The atomic number of the anode material of the tube is …….

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The correct Answer is:
A, D
` (1)/(lambda) = R(Z - 1 )^(2) [(1)/(n_(1)^(2) - (1)/(n_(2)^(2) )]]`
Since for `K_(omaga) n_(2) = 2 ` and `n_(1) = 1`
`:. (1)/(0.76 xx 10^(-10)) = 1.097 (Z - 1)^(2) (1)/(1^(2)) - (1)/(2^(2))] `
`rArr z - 1 = 40 rArr z = 41`
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