WebScience Physics It is desired to make an anti-reflection coating using a thin film on glass, to minimise reflection for light of 600nm wavelength in air an angle of incidence in air of 30 degrees. The film material has a refractive index of n = 1.37. Calculate the required minimum thickness of the film; give your answer in nm to the nearest integer. WebIn isolated cases, light can get reflected from glass. Most of the light is reflected and not transmitted from glass provided the light source is close to the glancing angle. A glass door or window is generally clear. Yet, it can reflect about 4% to 8% of light depending on the angle at which light hits the surface.
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WebThis is an old interesting question- why does glass partially reflect light. It was given a good modern answer by Maxwell's theory of electromagnetism. This classical explanation is enough for our purposes, and it applies to any light wave, not just laser light. So the first thing to consider is that light is an electromagnetic wave. WebJul 8, 2024 · The fact that the reflections have different color tints may be due to an anti-reflection coating on the glasses, which causes some colors to be reflected slightly more strongly than others, or due to a slight tint in the glass itself. See diagram below. tasued post utme 2022
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