Alternative to Practical: use the printed diagrams and show construction/graph working. The printed 1(d)(i) table entry has no separate mark; the four graph marks belong to 1(d)(ii) despite a mark-scheme numbering error.
(a)(i)On Fig. 2.1 mark and label P at the midpoint of side AB of the triangular prism.
[1 mark]
(a)(ii)On Fig. 2.1 draw the normal to side AB at P.
[1 mark]
(a)(iii)On Fig. 2.1 draw an incident ray directed towards P at an angle of incidence of 40°.
[1 mark]
(b)Fig. 2.2 shows a ray box producing a narrow light ray. Describe how to find and draw the complete path of that ray through the prism in Fig. 2.1.
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[4 marks]
5054/42/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 4 variant 2 · Question 2