A-LevelPhysicsWavesOct/Nov 2020Paper 1 Q221 Mark
The speed v of waves in deep water is given by the equation v² = gλ / (2π) where λ is the wavelength of the waves and g is the acceleration of free fall. A student measures the wavelength λ and the frequency f of a number of these waves. Which graph should he plot to give a straight line through the origin?
Af² against λ
Bf against λ²
Cf against 1/λ
Df² against 1/λ
✓ Correct Answer
The correct answer is D. 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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