Question

why do component colours of incident white light split into a spectrum while passing through a glass prism.Explain

Answer 1

These colors are often observed as light passes through a triangular prism. Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet. The separation of visible light into its different colors is known as dispersion.

Answer 2

splitting of white light into its component colours is called dispersion.this is due different colours of white light bend through different angles with respect to the incident ray as they pass through the prism