Application of total internal reflection: optical fibre
Core and cladding · Telecommunication · Endoscopy and keyhole surgery
Name the layers of an optical fibre
Explain how light stays inside the core
Describe fibres in telecommunication
Describe endoscopy, colonoscopy and keyhole surgery
Core: thin glass fibres that carry the light
Cladding: lower refractive index than the core
Plastic coating: protects the glass
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