Exam-style question
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In a decay process where a particle emits a photon, which conservation law must be satisfied?.
- A.Conservation of baryon number
- B.Conservation of charge
- C.Conservation of energy
- D.Conservation of momentum
Model answer
What a good answer should say
- Conservation of energy.
- the correct option
Explanation
Why this works
The correct answer is Conservation of energy. This supports Use conservation laws to predict missing particles in decay equations.
in Applications of conservation laws because it uses the required AQA A-Level Physics idea directly. The other options are less suitable because they either describe a different particle/radiation concept or miss the key condition tested by the question.
Common mistake
No common mistake is linked to this question yet.