Savera passed a beam of white light through a series of equilateral prisms as shown.
(a) What colour(s) will be seen on the screen?
(b) Copy the diagram above and draw the beam entering Prism 1 and emerging from Prism 3 and falling on the screen.
(c) Name all the processes that takes place when the beam of light enters the Prism 1 and emerges from Prism 3.