A laser with wavelength d/8 is shining light on a double slit with slit separation 0.400 millimeter. This results in an interference pattern on a screen a distance L away from the slits. We wish to shine a second laser, with a different wavelength, through the similar slits.
Part A: Compute the wavelength of the second laser that would place its second maximum at the similar location as the fourth minimum of the first laser, if d = 0.400 mm?