Mathematics · Wave Optics
White light passes through a double slit and interference is observed on a screen 1.5 m away. The separation between the slits is 0.3 mm. The first violet and red fringes are formed 2.0 mm and 3.5 mm away from the central white fringe, respectively. The difference in wavelengths of red and violet light is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1150 nm
- 2400 nm
- 3200 nm
- 4300 nm✓
Correct answer
300 nm
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