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Wave Optics question

2018 · Shift 0 · Q46
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Wave Optics question

2018 · Shift 0 · Q46

JEE MainPhysicsWave OpticsMCQ+4 / −1
The angular width of the central maximum in a single slit diffraction pattern is 60°. The width of the slit is 1 μ\muμ m. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young’s fringes can be observed on a screen placed at a distance 50 cm from the slits. If the observed fringe width is 1 cm, what is slit separation distance? (i.e. distance between the centres of each slit.)
  1. A
    100 μ\muμ m
  2. B
    25 μ\muμ m
  3. C
    50 μ\muμ m
  4. D
    75 μ\muμ m
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