AQA · A level Physics

AI quantum experiment design A-level challenge

Can you get 100%? Use an AI-suggested photon experiment to test photon energy, experimental controls and the difference between a proposal and evidence.

Read how AI suggests quantum experiments

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Question

8 marks

Answer all parts. Show your working and give units where appropriate.

1(a)

An AI-designed experiment uses photons of wavelength 650 nm. Calculate the energy of one photon. Use

[3 marks]

1(b)

The proposed arrangement predicts that two detectors should click together more often than expected by chance. The software counts a coincidence when both detectors click within the same fixed time window. Researchers estimate accidental coincidences by shifting one detector's recorded times so clicks from the same event cannot match. They can also block the proposed photon pathway. Describe three checks or comparisons needed for a valid test of the prediction.

[3 marks]

1(c)

Explain why a physically possible apparatus suggested by an AI model is not itself a discovery.

[2 marks]

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