Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.

Draw a neat diagram to show dispersion of light in a prism.

What is spectrum? Draw a labelled diagram to show the formation of spectrum. Name the various colours of spectrum.

A ray of white light is passed through a glass prism and a spectrum is obtained on a screen. (a) Name the seven colours of the spectrum in order. (b) Do the colours have the same width in the spectrum ? (c) Which colour of the spectrum of white light deviates (i) the most, (ii) the least?

Why do components of incident white light splits into a spectrum while passing through a glass prism?

Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surface. Also indicate the order of the colours of the spectrum obtained.