Physics iGCSE - Using Waves (BGS Year 9) 3.0 / 5 based on 2 ratings ? PhysicsWaves and SoundIGCSEEdexcel Created by: Tej ChadeesinghCreated on: 15-05-13 09:27 What is the source of Infa-red waves Hot objects 1 of 2 What wave is used in fibre optic communication? Visible light 2 of 2
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