In Uranium Z = 92 , the K absorption edge is 0 .107 Å and the K α line is 0 .126 Å . The wavelength of the L absorption edge is

Question

In Uranium Z = 92 , the K absorption edge is 0 .107 Å and the K α line is 0 .126 Å . The wavelength of the L absorption edge is, 0 .7 Å, 1 Å, 2 Å, 3 . 2 Å

MARKS App · Accepted Answer

Energy of K absorption edge is E K = h c λ K = 12.4 0.107 = 115.9 k e V , Energy of Kα line is E K a = E K - E L = h c λ a = 12.4 0.126 = 98.4 k e V Therefore energy of L absorption edge is L E L = ( E K ) - E ( K a ) = 115.9 - 98.4 L E L = 17.5 k e V The wavelength of the L absorption edge is λ L = h c E L = 12.4 k e V Å 17.5 k e V = 0.709 Å

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