A-LevelPhysicsWavesFeb/Mar 2022Paper 1 Q261 Mark
Water waves of wavelength λ are formed in a ripple tank. The waves are diffracted as they pass through a narrow gap of width d (d is greater than λ). Which gap width and which wavelength will cause the largest decrease in the amount of diffraction? gap width wavelength A ¹/₂d ¹/₂λ B ¹/₂d 2λ C 2d ¹/₂λ D 2d 2λ
A¹/₂d, ¹/₂λ
B¹/₂d, 2λ
C2d, ¹/₂λ
D2d, 2λ
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The correct answer is C. This question tests the candidate's understanding of waves 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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