7.1 The electromagnetic spectrum consists of seven radiation rays - NSC Technical Sciences - Question 7 - 2022 - Paper 1
Question 7
7.1 The electromagnetic spectrum consists of seven radiation rays. List any FOUR of the seven rays in no particular order.
7.2 Write down the rays that:
7.2.1 Lead... show full transcript
Worked Solution & Example Answer:7.1 The electromagnetic spectrum consists of seven radiation rays - NSC Technical Sciences - Question 7 - 2022 - Paper 1
Step 1
7.1 List any FOUR of the seven rays in no particular order.
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Answer
The electromagnetic spectrum consists of several types of radiation rays, which can include:
Radio waves
Microwaves
Infra-red
Ultraviolet
X-rays
Gamma rays
Visible light
Any four of these can be selected as a valid answer.
Step 2
7.2.1 Lead to skin damage when a person is overexposed to sunlight
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Answer
The rays that lead to skin damage when a person is overexposed to sunlight are:
Ultraviolet rays.
Step 3
7.2.2 Are used in night-vision devices
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Answer
The rays that are used in night-vision devices are:
Infra-red rays.
Step 4
7.2.3 Can penetrate the human body to gather medical information
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Answer
The rays that can penetrate the human body to gather medical information are:
X-rays.
Step 5
7.2.4 Have photons with the lowest energy
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Answer
The rays that have photons with the lowest energy are:
