A-LevelPhysicsSuperposition9702/12 · Oct/Nov 2020 · Q291 Mark

An experiment is carried out to demonstrate double-slit interference using light of wavelength 500 nm. The distance between bright fringes in the interference pattern is 5 mm. What are possible values for the distance between the slits and the screen, and the slit separation?

Aslit-screen distance: 50 cm, slit separation: 0.5 mm

Bslit-screen distance: 50 cm, slit separation: 5 mm

Cslit-screen distance: 5 m, slit separation: 0.5 mm

Dslit-screen distance: 5 m, slit separation: 5 mm

✓ Correct answer

C: slit-screen distance: 5 m, slit separation: 0.5 mm

Oracle Prep sorts past-paper questions by topic, so you can drill Superposition and see which topics are most likely to come up next.

Topic: Superposition, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2020 Paper 1 Variant 2, question 29.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content