- Shine laser through bent optical fiber and total internal reflection is observed. Place optical fiber in tub of oil and laser is no longer internally reflected because index of refraction of oil is similar to that of optical fiber.
- Oil and optical fiber located in L01, section B5. Red pasco
laser located in L35, section A5. Ring stand in L35. Clamp in L35, section
D1. - Bring paper towels for clean-up.