Exam-style question
Try this first
IRRADIATION DEMO case: sealed source near card produces evidence from exposure without transfer. Which option best answers the objective "Calculate half-life and remaining activity." for Radioactive decay, while reaching the conclusion about source removal?.
- A.nuc-126-irradiation-demo: Link sealed source near card to exposure without transfer and conclude source removal for Radioactive decay.
- B.nuc-126-irradiation-demo: Ignore exposure without transfer and answer with an unrelated Radioactivity recall phrase.
- C.nuc-126-irradiation-demo: Swap the required nuclear distinction and claim source removal without evidence.
- D.nuc-126-irradiation-demo: Use a calculation label only, without applying calculate half-life and remaining activity..
Model answer
What a good answer should say
- The correct option is nuc-126-irradiation-demo: Link sealed source near card to exposure without transfer and conclude source removal for Radioactive decay.
Explanation
Why this works
It is correct because the irradiation demo context uses exposure without transfer to support calculate half-life and remaining activity. in Radioactive decay.
The distractors fail because they either ignore the evidence, swap a nuclear concept boundary, or give a label without the required A-Level Physics reasoning.
Common mistake
No common mistake is linked to this question yet.