(a(i))[1]
On Fig. 6.1, label the angle of incidence for the ray with the letter $i$.
(a(ii))[2]
On Fig. 6.1, draw the rest of the path of the green light ray until it reaches the screen.
(b(i))[1]
The white light separates into a spectrum of colours. State the term used for this effect.
(b(ii))[1]
State which colour is refracted the most by the prism.