in a two slit experiment the slit seperation is $3\mathrm{.}00$ x $10^-5$ m$.$ The interface pattern is recorded on a flat screen$-$like detector that us $2\mathrm{.}00$m away grom the slits. If the $7$th bright fringe on the detector is $10\mathrm{.}0$cm away from the central fringe. What is the wavelength of the light passing through the slits