In a Young double-slit experiment, a transparent mica sheet of refractive index 1.56 is placed in front of one slit. The central fringe shifts to the position originally occupied by the 7th bright fringe when both slits were uncovered. If the wavelength is 450 nm and the sheet thickness is α×10⁻⁹ m, find α.
Physics · Wave Optics · young's dubble slit experiments
In a Young double-slit experiment, a transparent mica sheet of refractive index 1.56 is placed in front of one slit. The central fringe shifts to the position originally occupied by the 7th bright fringe when both slits were uncovered. If the wavelength is 450 nm and the sheet thickness is α×10⁻⁹ m, find α.