• Subject:


  • Topic:


A beam of light of 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark fringes on either side of the central bright fringe is
(a) 1.2cm

(b) 1.2mm

(c) 2.4cm

(d) 2.4mm