Interference fringes were produced in Young’s double slit experiment using light of…
Physics · Class 12 · CBSE — Wave Optics
Interference fringes were produced in Young’s double slit experiment using light of wavelength 5000 Å. When a film of material
2.5 × 10–3 cm thick was placed over one of the slits, the fringe pattern shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is
2.5 × 10–3 cm thick was placed over one of the slits, the fringe pattern shifted by a distance equal to 20 fringe widths. The refractive index of the material of the film is
- 1.25
- 1.33
- 1.4
- 1.5
Answer
(C) 1.4
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