Two slits $0.125 mm$ apart are illuminated by light of wave length $4500 A^{\circ}$. The screen is 1 m away , from the plane of the slits. Find the separation between the second bright finge on both sides of the central maximum .

Question

$\begin{array}{1 1} 14.4\;mm \\ 1.44\;mm \\ 144 \;mm \\ 0.144\;mm \end{array}$