O-LevelPhysicsWavesOct/Nov 2024Paper 1 Q271 Mark
A student makes four statements about infrared waves. 1 They can be seen by the human eye. 2 They travel at 330 m/s in air. 3 They are transverse waves. 4 They are used by intruder alarms. Which statements are correct for infrared waves?
A1 and 3
B2, 3 and 4
C2 only
D3 and 4 only
✓ 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep