The device shown in the picture was invented not long after the discovery of X-rays - Edexcel - GCSE Physics - Question 5 - 2012 - Paper 1
Question 5
The device shown in the picture was invented not long after the discovery of X-rays.
It emitted X-rays through the window.
In the 1920s, it was used to remove unwan... show full transcript
Worked Solution & Example Answer:The device shown in the picture was invented not long after the discovery of X-rays - Edexcel - GCSE Physics - Question 5 - 2012 - Paper 1
Step 1
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
X-rays are D: ionising radiations emitted by radioactive sources. This option correctly identifies that X-rays have the ability to ionize atoms, making them highly penetrating.
Step 2
Explain how effective this would be as a precaution.
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Answer
Sunglasses may provide some level of protection from bright light but are not effective against X-rays. X-rays can penetrate through most materials, including typical sunglasses, leaving eyes vulnerable to possible damage from exposure.
Step 3
State one of the effects this machine may have had on them.
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Answer
One of the effects could have been an increased risk of developing cancers, particularly skin cancers, due to prolonged exposure to ionizing radiation from the device.
Step 4
Suggest why people used this device for many years.
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Answer
People may have used this device for many years due to its advertised effectiveness in hair removal and the marketing of it as a painless and harmless procedure, leading to a perception of safety.
Step 5
By considering the dangers associated with both devices, discuss whether the infrared laser device should be put on general sale to the public.
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Answer
The infrared laser device, being low energy and less dangerous than the X-ray device, presents a potential advantage for public use. However, consideration must be given to the risks of skin damage or any unseen long-term effects. Regulatory bodies should conduct thorough assessments to ensure public safety before allowing general sale.
