In a double slit experiment using light of wavelength $600\; nm$ , the angular width of a fringe formed on a distant screen is $0.1^{\circ}$ What is the spacing between the two slits ?

Question

$\begin{array}{1 1} 3.44 \times 10^{-4} \;cm \\ 3.44 \times 10^{-4} \;cm \\ 3.44 \times 10^{4} \;cm \\ 3.44 \times 10^{4} \;cm\end{array} $