Explanation:
Scientists at the time of the 1670s knew that sunshine may produce different hues when it passes through a prism, but it was still believed that the prism creates all seven colours (VIBGYOR) and that sunlight is nothing more than white light.
But ISAAC NEWTON disproved this, publishing his findings and studies to show that the prism did not generate the seven colours.
EXPERIMENT:
He used two prisms, keeping the second one inverted with respect to the first. He then passed a narrow white light beam through the first prism, letting it disperse. He then made a slight adjustment to the second prism, allowing the white light to emerge from it. This is known as RECOMBINATION OF SPECTRUM OF WHITE LIGHT. of the white light’s spectrum