In the two separate set-ups of the Young’s double slit experiment, fringes of equal width…
Physics · JEE Main · NTA Exams — Optics
In the two separate set-ups of the Young’s double slit experiment, fringes of equal width are observed when lights of wavelengths in the ratio 1 : 2 are used. If the ratio of the slit separation in the two cases is 2 : 1, the ratio of the distances between the plane of the slits and the screen, in the two set ups is
- 4:1
- 1:1
- 1:4
- 2:1
Answer
(A) 4:1
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