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A radioactivity monitoring badge is worn by people who might be exposed to radiation - Edexcel - A-Level Physics - Question 10 - 2023 - Paper 2
Question 10
A radioactivity monitoring badge is worn by people who might be exposed to radiation. The badge is made from photographic film wrapped in thin paper and then held in... show full transcript
Worked Solution & Example Answer:A radioactivity monitoring badge is worn by people who might be exposed to radiation - Edexcel - A-Level Physics - Question 10 - 2023 - Paper 2
Step 1
Which of the following represents the film after the badge is exposed to beta radiation?
Answer
Beta radiation is a type of ionising radiation that can pass through the open window of the badge but is blocked by the lead window. Therefore, the film under the lead window will remain unchanged, while the film under the open window will darken. The correct representation of the film after exposure to beta radiation is shown in option A, which illustrates the expected darkening effect of the radiation on the open window side.