The wavelength of {K_alpha } line f | vedclass

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Question

$\frac{1}{\lambda} \propto(Z-b) 2$

$\frac{\lambda_{2}}{\lambda_{1}}=\frac{\left(Z_{1}-b\right)^{2}}{\left(Z_{2}-b\right)^{2}}=\left(\frac{28}{14}\r

Vedclass · Accepted Answer

$4\lambda $

Vedclass · Answer

$\frac{1}{\lambda} \propto(Z-b) 2$

$\frac{\lambda_{2}}{\lambda_{1}}=\frac{\left(Z_{1}-b\right)^{2}}{\left(Z_{2}-b\right)^{2}}=\left(\frac{28}{14}\right)^{2}=4$

$\boxed{{\lambda _2} = 4{\lambda _1}}$

List $- I$	List $- II$
$(1)$ Davisson and Genner	$(i)$ Wave nature of electrons
$(2)$ Millikan's oil drop experiment	$(ii)$ Charge of an electron
$(3)$ Rutherford experiment	$(iii)$ Quantisation of energy levels
$(4)$ Franck-Hertz experiment	$(iv)$ Existence of nucleus

The wavelength of ${K_\alpha }$ line for an element of atomic number $29$ is $\lambda $ . Then the wavelength of ${K_\alpha }$ line for an element of atomic no $15$ is (Take mosley‘s constant $b = 1$ for both elements)

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