A-LevelPhysicsSuperposition9702/12 · Feb/Mar 2017 · Q291 Mark
In an experiment to demonstrate two-source interference of light, a beam of light is split into two beams using two slits 0.50 mm apart. These two beams are incident on a laboratory wall at a distance of 4.0 m. The wavelength of light is 550 nm. How far apart are two adjacent interference fringes that are formed on the laboratory wall?
A0.22 mm
B0.44 mm
C2.2 mm
D4.4 mm
✓ Correct answer
D: 4.4 mm
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