Question

In a Young's double-slit experiment the wavelength of light used is 485 nm (in vacuum), and the separation between the slits is 1.5 × 10^-6 m. Determine the angle that locates (a) the dark fringe for which m = 0, (b) the bright fringe for which m = 1, (c) the dark fringe for which m = 1, and (d) the bright fringe for which m = 2.

Answer 1

(for 2ntl)2 bright frige) for dak fringe) dsim0 в ma d sin a) sina n=0 485 10 9 2 .5lo6 а SIn а - q.3 5 LO 0 18. 86 c) dark 3 A |2 d ( 0 29.01 a) na2 brgh a 40.29