Jon Chase demonstrates how electromagnetic waves are used in communication using ... This topic appears in OCR, Edexcel, AQA, WJEC KS4/GCSE in England and Wales, CCEA GCSE in Northern Ireland ...
Both mechanical and electromagnetic waves will transfer energy but not matter ... Lenses and ray diagrams - OCR Gateway What are lenses? In this GCSE physics study guide, you will learn that ...
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