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Wave Optics question

2019 · 9 Apr · Shift 1 · Q56
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Wave Optics question

2019 · 9 Apr · Shift 1 · Q56

JEE MainPhysicsWave OpticsMCQ+4 / −1
The figure shows a Young's double slit experimental setup. It is observed that when a thin transparent sheet of thickness t and refractive index μ is put in front of one of the slits, the central maximum gest shifted by a distance equal to n fringe widths. If the wavelength of light used is λ\lambdaλ, t will be : JEE Main 2019 (Online) 9th April Morning Slot Physics - Wave Optics Question 117 English
  1. A
    Dλa(μ−1){{D\lambda } \over {a\left( {\mu - 1} \right)}}a(μ−1)Dλ​
  2. B
    2nDλa(μ−1){{2nD\lambda } \over {a\left( {\mu - 1} \right)}}a(μ−1)2nDλ​
  3. C
    2Dλa(μ−1){{2D\lambda } \over {a\left( {\mu - 1} \right)}}a(μ−1)2Dλ​
  4. D
    nλ(μ−1){{n\lambda } \over {\left( {\mu - 1} \right)}}(μ−1)nλ​
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