1. K = eV
where K = Kinetic energy of an electron when it hits the target
V = potential difference applied between the target and the filament
2. λ = hc/E
Where
λ = wave length of the X-ray
E = kinteic energy of the electron due to which the X-ray is emitted
3. λmin = hc/eV
λmin = cutoff wavelength below which no X-rays are emitted
V = potential difference applied between the target and the filament
4. Moseley's law
Square root of frequency of X rays = a(Z-b)
√(ν) = a(Z-b)
where
ν = frequency of X-rays
Z = position number of element.
a and b are constants
5. Bragg’s law
2d sin θ = n λ
d = interplanar spacing of the crystal on which X-rays are incident
θ = is the incident angle at which X-rays are strongly reflected.
n = 1,2,3 …
λ = wave length of X-rays
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