Radioactive tracers can be used to monitor how well a patient's lungs are working.
A radioactive gas is breathed in by the patient. The isotope emits radiation.
As the gas circulates through the lungs, this radiation is detected outside the chest by a scanner.
What type of radiation is able to pass through the body tissue to reach the scanner?
alpha
beta minus
beta plus
gamma
Practise Edexcel GCSE Physics Radioactive decay, half-life and uses with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.