- 04/28/2019 at 6:33 pm #690322EduGorillaKeymasterSelect Question Language :
Interference fringes were produced in Young’s double slit experiment using light of wavelength 5000 . When a film of material 2.5 x 10-3 cm thickness was placed over one of the slits, the fringe pattern shifted by a distance equal to 20 fringe widths. Which of the following represents the refractive index of material of the film?
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