In a two-slit experiment, the third bright fringe away from the central fringe is observed at an angle of 7.0°. If the wavelength of the light is 490 nm, what is the distance between the two slits?
A)
3.6 × 10-5 m
B)
4.0 × 10-6 m
C)
2.1 × 10-6 m
D)
2.1 × 10-5 m
E)
1.2 × 10-5 m
E
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