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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A glass of refractive index 1.5 is coated with a thin layer of thickness t and refractive index 1.8 . Light of wavelength lemda travelling in air is incident normally on the layer. It is partly reflected at the upper and the lower surfaces

A glass of refractive index 1.5 is coated with a thin layer of thickness t and refractive index 1.8 . Light of wavelength lemda travelling in air is incident normally on the layer. It is partly reflected at the upper and the lower surfaces

A Lloyd's mirror of length 5 cm is illuminated with monochromatic light of wavelength lemda = (6000 A) from a narrow 1 mm slit in its plane and 5 cm plane from its near edge. Find the fringe