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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 27 - Wave Optics > A thin film of refractive index 1.5 and thickness 4×10^−5 cm is illuminated by light normal to the surface. What wavelength within the visible spectrum will be intensified in the reflected beam?

A thin film of refractive index 1.5 and thickness 4×10^−5 cm is illuminated by light normal to the surface. What wavelength within the visible spectrum will be intensified in the reflected beam?

In a YDSE with identical slits the intensity at the same point is the intensity of the central bright fringe is I0. If one of the slits is covered