Young's double slit experiment breaks a single light beam into two sources. would the same pattern be obtained if two lasers of the same wavelength were side by side, the same distance from each other as the slit separation? yes, because the laser light has patterns that don't work together. no, because the laser light has tiny inconsistencies between them, causing this idea to fail. no, because the laser light isn't from the same source. yes, because the light from the two lasers will interfere when the waves overlap.