A-LevelPhysicsSuperpositionMay/June 2022Paper 1 Q301 Mark
The equation λ = d sin θ / n is used to calculate the wavelength λ of light in an experiment that uses a diffraction grating. The light from the diffraction grating is displayed on a screen. What do the symbols n and d represent?
An: number of slits in the grating, d: distance between adjacent slits in the grating
Bn: number of slits in the grating, d: distance from grating to screen
Cn: order of intensity maximum, d: distance between adjacent slits in the grating
Dn: order of intensity maximum, d: distance from grating to screen
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of superposition within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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