A Narrow Slit Is Illuminated with Sodium Yellow Light of Wavelength

question 19

Multiple Choice

A narrow slit is illuminated with sodium yellow light of wavelength 589 nm. If the central maximum extends to ±30.0°, how wide is the slit?

• A) 0.500 mm
• B) 2.20 × 10−⁶ m
• C) 3.33 × 10−⁵ m
• D) 1.18 μm
• E) 5.89 μm

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