Which of the following pairs of colours gives the widest separation in the spectrum of white light?
-
Red and Violet
- Green and Yellow
- Red and Indigo
- Yellow and Violet
The correct answer is: A
Explanation
When white light is passed through a glass prism it splits into its spectrum of colours (violet, indigo, blue, green, yellow, orange, and red) and this process of separating white light into its constituent colours is called dispersion.