InterviewSolution
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InterviewSolution
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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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Answer» `K_(alpha)` X-ray are produced when an electron makes a transition from `n = 2 to n = 1` to fill a vacancy in `K` shell . The wavelength of X-ray lines is given by `(1)/(lambda_(K_alpha)) = R(Z - 1)^(2) ((1)/(1^(2)) - (1)/(2^(2))) = (3)/(4) R(Z - 1)^(2)` or `(Z - 1)^(2) = (4)/(3 R lambda_(K_alpha))` `= (4)/(3 xx (1.097 xx 10^(7)) xx (0.76 xx 10^(-10)))` or `(Z - 1)^(2) = 1600` or `Z - 1 = 40` or `Z = 41` |
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