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Wave Optics question

2025 · 22 Jan · Shift 2 · Q64
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Wave Optics question

2025 · 22 Jan · Shift 2 · Q64

JEE MainPhysicsWave OpticsMCQ+4 / −1
A transparent film of refractive index, 2.0 is coated on a glass slab of refractive index, 1.45. What is the minimum thickness of transparent film to be coated for the maximum transmission of Green light of wavelength 550 nm . [Assume that the light is incident nearly perpendicular to the glass surface.]
  1. A
    68.7 nm
  2. B
    137.5 nm
  3. C
    94.8 nm
  4. D
    275 nm
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