Question

If a monochromatic source of light is replaced by white light, what change would you observe in the diffraction pattern ?

Answer 1

When white light is used as source of light. There will be interference which results in few coloured fringes at the center and after that different interference pattern corresponding to different wavelengths superimpose which results in general illumination of screen.

Answer 2

Answer:

The change in diffraction pattern of a single slit, when the monochromatic source of light is replaced by a source of white light will be. When a source of white light is used instead of a monochromatic source, the diffracted image of the slit gets dispersed into constituent colours of white light.