Explain the change thet occurs in the interference pat tern in an Young's double slit experiment, if white light is used instead of monochromatic light.

Explanation

If white light is used instead of monochromatic light in Young's double slit experiment there will be bright coloured fringes on either side of the white central fringe. White light consists of different coloured lights having different wavelengths. Each of these waves produces a different characteristic interference pattern. So the interference pattern remains at equal distance from each of the coherent sources, sources hence light of all colours reach here in the same phase and bright whit light is produced.