Name the phenomenon where white light splits in different colours when passed through a prism. Why does violet light bend more than red light?

The phenomenon where white light is split into different colours is called dispersion.

After passing through the prism, the white light is broken down into its component colours, red, orange, yellow, green, blue, and violet. Dispersion is the process through which visible light is separated into various colours.

Violet light moves through the prism at the slowest speed and red light at the fastest. As a result, the deviation of Violet Light is maximum, whereas Red Light's is minimum. Hence, violet light bends more than red light.