Problem

In a Young's double slit experiment

\lambda = 500 \text{ nm}

d = 1.0 \text{ mm}

and

D = 1.0 \text{ m}

. Find the minimum distance from the central maximum for which the intensity is half of the maximum intensity. (a)

10^{-4} \text{ m}

(b)

2.5 \times 10^{-4} \text{ m}

(c)

1.25 \times 10^{-4} \text{ m}

(d)

5 \times 10^{-4} \text{ m}