[填空题]
Light of wavelength 480 nm in air fh u6i lp r9yombyo7 o;/9 a.yfshef+36alls6i r ;j-dax+(4njpttua j,se- on two slits $6.00 \times10^{-2 }\;mm$ apart. The slits are immersed in water, as is a viewing screen 40.0 cm away. How far apart are the fringes on the screen? mm
