A-LevelPhysicsSuperposition9702/12 · May/June 2011 · Q291 Mark
The diagrams show the arrangement of apparatus for a Young's slits experiment and also part of the pattern formed on the screen with a ruler placed next to it. [Figure 29.0] What is the wavelength of the light?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A4.8 × 10⁻⁷ m
B5.4 × 10⁻⁷ m
C3.2 × 10⁻⁶ m
D3.4 × 10⁻⁶ m
✓ Correct answer
B: 5.4 × 10⁻⁷ m
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