Figure 10 shows the position of three types of wave in the electromagnetic spectrum - AQA - GCSE Physics - Question 6 - 2020 - Paper 1
Question 6
Figure 10 shows the position of three types of wave in the electromagnetic spectrum.
Which letter represents the position of X-rays in the electromagnetic spectrum?... show full transcript
Worked Solution & Example Answer:Figure 10 shows the position of three types of wave in the electromagnetic spectrum - AQA - GCSE Physics - Question 6 - 2020 - Paper 1
Step 1
Which letter represents the position of X-rays in the electromagnetic spectrum?
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Answer
The correct letter representing the position of X-rays in the electromagnetic spectrum is D.
Step 2
Give one possible harmful consequence of receiving a dose of X-ray radiation.
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Answer
One possible harmful consequence of receiving a dose of X-ray radiation is mutation of genes/DNA/chromosomes. This can lead to various health issues like cancer.
Step 3
Compare the risk of harm to the patient of having an X-ray rather than a CT scan.
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Answer
The risk of harm is lower from the X-ray by a factor of 60, as the radiation dose from a CT scan (6.0 millisieverts) is significantly higher than that of an X-ray of the arm (0.1 millisieverts).
Step 4
Which of the following is the same as 6.0 millisieverts?
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Answer
The correct answer is 0.0060 sieverts.
Step 5
Calculate the percentage of this dose that came from one X-ray of the arm.
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Answer
To calculate the percentage of the total dose that came from one X-ray of the arm, use the formula:
rac{0.1}{2.5} imes 100 = 4\%
Thus, 4% of the total radiation dose received by the patient came from one X-ray of the arm.
