A light source simultaneously emits light of two wavelengths, 460 nm and 654 nm, respectively. The source is used in a double-slit interference experiment where the slit spacing is a 0.0431 mm, and the distance between double slits and the screen is 0.90 m. What is the separation between the second-order bright fringes of the two wavelengths as they appear on the screen? (1 nm = 10?9 m)
a. 4.1E–3 m
b. 2.1E–3 m
c. 8.1E–3 m
d. 6.9E–3 m
e. 4.7E–2 m
c
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