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Find the wavelength of the K(alpha) lin...

Find the wavelength of the `K_(alpha)` line in copper `(Z=29)`, if the wave length of the `K_(alpha)` line in iron `(Z=26)` is known to be equal to `193 "pm"` (Take `b=1`)

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The correct Answer is:
`lambda_(1)=((26-1)/(29-1))^(2)193"pm"=154"pm"`
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