H2P-617
Measuring wavelength with a grating
H2 Physics · JC 2 · Medium · Measuring wavelength with a grating
Light of wavelength 520 nm from a laser passes through two narrow slits separated by 0.80 mm. A screen is placed 1.6 m from the slits. What is the separation of adjacent bright fringes on the screen?
- 1.0 × 10⁻³ m
- 5.2 × 10⁻⁴ m
- 2.6 × 10⁻³ m
- 8.0 × 10⁻⁴ m
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