This question is about waves in the electromagnetic (e-m) spectrum - Edexcel - GCSE Physics Combined Science - Question 1 - 2023 - Paper 1
Question 1
This question is about waves in the electromagnetic (e-m) spectrum.
Figure 1 shows some types of radiation that form part of the e-m spectrum and some uses of e-m r... show full transcript
Worked Solution & Example Answer:This question is about waves in the electromagnetic (e-m) spectrum - Edexcel - GCSE Physics Combined Science - Question 1 - 2023 - Paper 1
Step 1
Draw one straight line from each type of e-m radiation to its use.
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Answer
Infrared → Satellite transmission
Visible light → Colour photography
Microwaves → Disinfecting water
Ultraviolet → Thermal imaging
Step 2
Which of these waves has the highest frequency?
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Answer
C. Ultraviolet. According to the electromagnetic spectrum, ultraviolet waves have a higher frequency than infrared, microwaves, and visible light.
