Two lasers are shining on a double slit, with slit separation $0\mathrm{.}05$mm$.$ Laser $1$ has a wavelength of $700$nm$,$ whereas laser $2$ has a wavelength of $400$nm$.$ The lasers produce separate interference pattern on a screen a distance$4$m away from the slits. Which laser has its first maximum closer to the center maximum $?700$nm or $400$ nm