A-LevelPhysicsPhysical quantities and unitsMay/June 2011Paper 1 Q31 Mark
In making reasonable estimates of physical quantities, which statement is not correct?
AThe frequency of sound can be of the order of GHz.
BThe wavelength of light can be of the order of 600 nm.
CThe Young modulus can be of the order of 10¹¹ Pa.
DBeta radiation is associated with one unit of negative charge.
✓ Correct Answer
The correct answer is A: The frequency of sound can be of the order of GHz.
📋 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...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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