Which of the following pairs of colours gives the widest separation in the spectrum of white light?

White light is made up of different colors that we can see when we pass it through a prism or see a rainbow. The colors are arranged in a specific order called the color spectrum. The question asks which pair of colors gives the widest separation in the spectrum of white light. The colors in the spectrum are red, orange, yellow, green, blue, indigo, and violet. The wider the separation between two colors, the more distant they are from each other in the spectrum. Out of the given options, the pair that gives the widest separation in the spectrum of white light is "Red and Violet". This is because red is at one end of the spectrum, and violet is at the other end, making them the farthest from each other. Therefore, when we pass white light through a prism, we can see the widest separation of colors between red and violet.