Fig. 5.1 presents the principal sections of the electromagnetic spectrum arranged by rising frequency. The named regions are radio waves, infrared, visible light, ultraviolet and gamma rays. Two sections are left unnamed.
(a)[2]
Two of the regions have no label. Write the correct label for each of the two unlabeled regions in Fig. 5.1.
(b)[2]
State one use for infrared radiation and one use for ultraviolet radiation.
(c)[2]
Describe possible harmful effects caused by excessive exposure to infrared radiation and ultraviolet radiation.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “microwaves, which come after radio waves” …