Non reflecting coating:
This implements the principal of interference, here there are no energy loss due reflection. The energy lost in reflection appears in transmission. Hence surface of glass is coated with non reflecting coating.
The thickness of non reflecting film is here is wavelength of light and is refractive index
thickness of film is t=75.5nm.
Double slit.
Fringe width is
D is distance between screen and double slits and 2d is distance between two slits.
for Laser source 1.
so
for laser source 2.
so
Hence distance between first maximas (n=1) is = (0.28-0.17)m=0.11m
Chapter 24: Antireflective Coating What is the minimum thickness of m Express your answer in nanometers. tabulte (known as the substrate). The index of View Available Hints) Figure Air rays Poly...
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