Exam-style question
Try this first
If the momentum of a particle is doubled, how does its de Broglie wavelength change?.
- A.It doubles.
- B.It halves.
- C.It remains the same.
- D.It quadruples.
Model answer
What a good answer should say
- It halves..
- the correct option
Explanation
Why this works
The correct answer is It halves.. This supports Use the de Broglie equation to link wavelength and momentum.
in Wave-particle duality 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.