Question 1
Figure 1 shows how the visible spectrum of white light is shown on a screen.
Which of these is the best piece of equipment to produce the white light?
(1)
Which colour is seen between yellow and blue in the spectrum on the screen?
(1)
Figure 2 shows the main parts of the electromagnetic spectrum.
Complete the following sentences using information from Figure 2. Each part of the electromagnetic spectrum may be used once, more than once or not at all.
The part of the electromagnetic spectrum used to detect broken bones is
(1)
The part of the electromagnetic spectrum used in thermal imaging is
(1)
The part of the electromagnetic spectrum that
• is used to cook food
AND
• has a shorter wavelength than microwaves is
(1)
The part of the electromagnetic spectrum that
• is used to sterilise medical equipment
AND
• has a shorter wavelength than x‑rays is
(1)