Fig. 9.1 shows the seven principal sections of the electromagnetic spectrum. The sections labelled are radio waves, microwaves, infra-red radiation, visible light, ultraviolet, one section left unnamed, and gamma rays.
(a(i))[1]
One section in Fig. 9.1 has no label. State the name of the radiation in that section.
(a(ii))[1]
State which region has the greatest wavelength.
(b)[1]
Tick the box for the wave with the lowest speed in air: ultraviolet, ultrasound, visible light.
(c)[4]
Describe a method they could use. State the measurements they must take.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “X‑rays or X‑radiation” …