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## Investigating Refraction of Light

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**InvestigatingRefraction of Light**Created for CVCA Physics By Dick Heckathorn 28 May 2K+1**Table of Contents**2 Light from Air into Plastic 8 Light from Plastic into Air 15 Determine Critical Angle 18 Light through a Prism**Refraction**Light traveling from air into plastic.**Refraction**N Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Light traveling from plastic into air.**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Plastic 1.51 Calculate angle r**Refraction**Air 1.00 Calculate angle r Calculator says ? All is reflected No refraction Plastic 1.51**Refraction**Air 1.00 Calculate angle r Calculator says? Plastic 1.51**Finding the Critical Angle**What will be the angle in plastic when the angle in air is 900**Finding the Critical Angle**N Air 1.00 Plastic 1.51**Measure angle i**Draw ray i Air 1.00 Draw ray r Calculate angle r 60o Draw ray r Find new angle i Calculate angle r Plastic 1.51 60o 60o**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51**Refraction**Air 1.00 Plastic 1.51