Physics · Wave Optics
Interference fringes are observed on a screen by illuminating two thin slits 1 mm apart with a light source (λ = 632.8 nm). The distance between the screen and the slits is 100 cm. If a bright fringe is observed on the screen at a distance of 1.27 mm from the central bright fringe, then the path difference between the waves reaching this point from the slits is close to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.05 μm
- 22.00 nm
- 32.87 nm
- 41.27 μm✓
Correct answer
1.27 μm
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