(a(i))[1]
Draw the normal at point Z to the prism.
(a(ii))[2]
Use a ruler to trace the ray from Z until it has emerged from the prism.
(b)[1]
Describe the prism’s overall effect on the ray’s direction.
Physics 5054 · O Level · Refraction of light
Refraction of light — practice question
A student studies how light is refracted by the right-angled glass prism WXY. He uses a ray box to send a beam of light towards side WY of the prism, as shown in Fig. 4.1.