A beam of light of `lamda=600` nm from distant source falls on a single slit 1 mm wide and th resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark frenges on either side of the central bright fringe is

Options

A. 1.2cm
B. 1.2mm
C. 2.4 cm
D. 2.4 mm

Answer

D