Suppose in the double-slit arrangement, d = 0.150 mm , D = 120 cm , λ = 833 nm, and y = 2.00 cm .
(a) What is the path difference δ for the rays from the two slits arriving at point P ?
(b) Express this path difference in terms of λ
(c) Does point P correspond to maximum, a minimum, or an intermediate condition?