a parallel beam of light of wavelength 5890 Armstrong is incident on a glass plate having refractive index 1.5 such that the angle of refraction in the plate is 60 degree. calculate the smallest thickness of glass plane which will appear dark by reflected light.
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The smallest thickness of the plate which will make it dark by reflection: ... A parallel beam of sodium light of wavelength 5890 A0 is incident on a thin glass plate of refractive index 1.5 such that the angle of refraction in the plate is 60o. ... two glass slabs S1 and S2 normally and come out of the glass slabs simultaneously.
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