Available practice: 76 of 80 marks. Parts 10(c) await marking support. Scores cover available parts only. Theory: answer each printed part. For drawings, upload a clear photo of your sketch on the supplied figure; show working and units for calculations.
Ultraviolet radiation is one component of the electromagnetic spectrum.
(a)(i)Name two electromagnetic-spectrum components with shorter wavelength than ultraviolet radiation.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(a)(ii)State one useful application of ultraviolet radiation.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(a)(iii)State one kind of eye damage caused by ultraviolet radiation from the Sun.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(b)(i)Fig. 7.1 shows a ray passing into semi-circular glass at A and leaving at B along the surface towards C. Name the angle of incidence marked 40°.
Answer guidance
State A short answer. No explanation is needed, and adding one cannot earn extra marks.
[1 mark]
(b)(ii)Using the 40° angle in Fig. 7.1, calculate the refractive index of the glass.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[2 marks]
5054/22/M/J/23Cambridge O Level Physics 5054 · May/June 2023 · Paper 2 variant 2 · Question 7