In Young’s double slit experiment, the central bright fringe can be identified

Options

A. By using white light instead of monochromatic light
B. As it is narrower than other bright fringes
C. As it is wider than other bright fringes
D. As it has a greater intensity than the other bright fringes

Answer

A

Explanation

to locate the central bright fringe, white light is used instead of the original monochromatic source, without distrubing the other experimental set up. With white light, central fringe will be white with red edges and a few coloured bands are obtained on either side of it.