Fringe separation in double-slit interference is directly proportional to the wavelength and the screen distance, and inversely proportional to the slit separation.
Two parallel slits 1 millimetre apart are placed 1 metre away from the screen. What is the fringe separation due to interference effect, when a beam of wavelength 500 nanometres is incident on them ?
Asked in MPSC CS Prelims 2018 · Topic: Optics (Interference: Young's double-slit experiment, thin films, Newton's Rings)
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