Infrared
2 marks · NormalState two uses of infrared radiation other than for heating.
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Must show: Accept: remote control, security camera/thermal imaging, data transmission, searching for people in darkness
Common mistakes: Giving heating-only examples
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Marking points
B1 · 1 mark · Gives a correct example other than heating (e.g., remote controls, thermal imaging).
B2 · 1 mark · Gives a second, different correct example.
Worked solution
Infrared is used in remote controls and thermal/infrared cameras for searching in the dark.