White light splits into different colors through a prism and this phenomenon is known as dispersion of light.

Statement 1: When white light ray passes through a prism, it disperses into seven different colours, and this phenomenon is called dispersion.

Statement 2: In a refracting media, lights of different colour travel at different speed.

An optical instrument which can split white light into seven different colors is known as

The splitting of white light into several colors on passing through a glass prism is due to