A Young's double-slit apparatus is set up so that a screen is positioned 2.1 m from the double slits, and the spacing between the two slits is 0.033 mm. What is the distance between alternating bright fringes on the screen if the light source has a wavelength of 678 nm? (1 nm = 10?9 m)
a. 3.0E–4 m
b. 4.3E–2 m
c. 2.1E–2 m
d. 4.7E–2 m
e. 1.1E–2 m
b
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