Leaving Cert Physics – Optics 2 – Refraction and Lenses

This lesson will focus on the second Optics topic of the Leaving Cert Physics course: Refraction and Lenses.
In this lesson, we will cover:

• What is refraction?
• Refraction ray diagrams
• Laws of refraction
• Refractive index and how to calculate it
• Refraction experiments
• Total internal reflection
• Critical angle
• Applications of total internal reflection
• Lenses
• The eye
• Calculations to do with lenses
• Mirror and lens formula, power of a lens