Light that has a $550-nm$ wavelength is incident upon two narrow slits that are separated by $0\mathrm{.}450$ mm $.$ An interference pattern from the slits is projected onto a screen that is $3\mathrm{.}00$ m away.

What is the separation distance $D_{b1}$ on the screen of the first bright fringe from the central bright fringe?

What is the separation distance $D_{d2}$ on the screen of the second dark fringe from the central bright fringe?

$D_{d2}=$

$$ m

Incorrect Answer