A-LevelPhysicsSuperpositionFeb/Mar 2016Paper 1 Q261 Mark
Monochromatic light of wavelength 5.30 × 10⁻⁷ m is incident normally on a diffraction grating. The first order maximum is observed at an angle of 15.4° to the direction of the incident light. What is the angle between the first and second order diffraction maxima?
A7.7°
B15.4°
C16.7°
D32.1°
✓ 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...
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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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