Physics · Wave Optics
A wedge-shaped thin film is formed using a soap-water solution with a refractive index of 1.25. At near-normal incidence, when the film is illuminated by a monochromatic light of wavelength 600 nm, 10 interference fringes per cm are observed. The wedge angle is equal to ______ × 10-5 radians.
- 112
- 218
- 324✓
- 430
Correct answer
24
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