Question

What is the order of the seven colors that we see after dispersion through a glass prism?

• A. Violet indigo red green blue orange yellow
• B. Violet indigo blue green yellow orange red
• C. Red orange yellow Violet indigo blue green
• D. Red yellow indigo blue violet green orange

Answer 1

The correct option is B

Violet indigo blue green yellow orange red

Upon entry of white light at the first boundary of a triangular prism, there will be a slight separation of the white light into the component colours of the spectrum. Upon exiting the triangular prism at the second boundary, the separation becomes even greater and VIBGYOR is observed.