A parallel beam of light from a He$$Ne laser, with a wavelength $633$ nm$,$ falls on two very narrow slits $0\mathrm{.}068$mm apart.

$$How far apart are the fringes in the center of the pattern on a screen $3\mathrm{.}3$ m away?

$($For small angles, we can state that sin $$ tan $$ x$/$L$)$ For adjacent fringes, $$m $=1.$

$$

$$

$550$x$10-3$m

$3$m

$3\mathrm{.}07$x$10-2$m

$4\mathrm{.}15$x$10-8$m