Describe the use of visible light for vision, photography and optical communication.

Describe the use of visible light for vision, photography and optical communication.. Within Electromagnetic waves, this learning objective sits inside Uses and applications of electromagnetic waves for AQA Physics 8463. Focus on using ideas such as visible light, communication accurately in your explanation. A strong response should define the core idea, describe the relevant physical process, and connect it back to the question wording instead of giving a vague definition. When revising, students should aim to explain the subject clearly, include precise physics vocabulary, and show how the idea links to the wider topic rather than listing isolated facts.