What will happen if we use white light in Newton's ring?

The classic Newton's rings experiment is yet another demonstration of the interference of light. As with most experiments, understanding the underlying principle will enable us to answer your particular question. read more

The classic Newton's rings experiment is yet another demonstration of the interference of light. As with most experiments, understanding the underlying principle will enable us to answer your particular question. read more

Light from a sodium vapour lamp is almost monochromatic - white light is a mixture of many different colours. As the different colours have different wavelengths and Newtons rings locations depend on the wavelength at which constructive and destructive interference occurs, the different colours are split out to reinforce or otherwise, at different positions. read more