Question
CCEA Unit 1 Paper
(a) Explain what is meant by diffraction. (2 marks) (b) State the condition under which diffraction is most significant. (1 mark) (c) Explain why long-wavelength radio waves can be received behind hills but visible light cannot. (3 marks)
6 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.