Fig. 7.1 presents the electromagnetic spectrum, but one radiation type has no label. From left to right it shows radio waves, microwaves, infra-red waves, visible light, [blank], X-rays, gamma rays, and the arrow points left.
(a(i))[1]
On Fig. 7.1, write in the label for the radiation type that is missing.
(a(ii))[1]
The arrow in Fig. 7.1 shows that one property is getting larger. State which property increases as the arrow points in that direction.
(a(iii))[1]
Compare the speeds of radio waves and visible light as they travel in a vacuum.
(b(i))[2]
Describe the way X-rays are used to provide security at airports.
(b(ii))[2]
Explain which properties of X-rays make them useful for airport security.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Ultraviolet (waves/radiation)” …