Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15.

Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 5.80 {rm m} away from the slits.What is the distance Delta y_max-max between the first maxima (on the same side of the central maximum) of the two patterns? What is the distance Delta y_max-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum?