A hill stands between a radio transmitter and a house, as shown. [Figure showing a hill between a radio transmitter and a house] The radio transmitter cannot be seen from the house, but radio waves from the transmitter are received at the house. Why is this?
✓ Correct Answer
The correct answer is C: The wavelength of radio waves is longer than the wavelength of light so there is more diffraction of radio waves over the hill.
📋 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.
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep