A laser with wavelength d/8 is shining light on a double slitwith slit separatio

A laser with wavelength d/8 is shining light on a double slitwith slit separation 0.450 mm. This results in an interferencepattern on a screen a distance L away from the slits. We wish toshine a second laser with a different wavelength through the sameslits. What is the wavelength ? of the second laser that wouldplace its second maximum at the same location as the fourth minimumof the first laser if d = 0.450 mm?