Diffraction
December 8, 2016
Categorised in: 1st Year Physics
(1) asinθ = nλ (Direction of minima for single silt)
where, a = slit width AB
n = order of spectrum
λ = Wavelength of incident light
θ = Angle of diffraction
(2) $ asinθ’= (n+1/2)λ, $ (Direction of secondary maxima for single slit)
where, a = slit width AB
n = order of spectrum
λ=Wavelength of incident light
(3) (a+b) sinθ = mλ, (Direction of maxima for grating)
where, a = slit width
b = opaque space
m = order of spectrum
λ = wavelength of incident light
(a+b) = grating element
(4) $ N = 1/{(a+b)} $
N = number of slits
(a+b) = grating element
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