[填空题]
Monochromatic light falling om8;;e w sbdjxyn rn:3v 11m3*ayf4fy yn two slits 0.016 mm apart produq5(8o/nrsg:zvx; qba ces the fifth-order fringe (s:q;r/n qbo8ag5 xzvat an 8.8$^{\circ}\,$ angle. What is the wavelength of the light used? $ \times10^{-7 }\;m$
