Question

refraction of light through prism

Answer 1

when light passes through a prism its colors are often observed as lightpasses 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

when a Ray of white light passes through prisma it gets disperse into seven constituent colours I.e. vibgyor