Title ??? What is happening here? Keywords: Refraction Lenses

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Presentation transcript:

Title ??? What is happening here? Keywords: Refraction Lenses All: ??? Most: ??? Some: ??? interface What is happening here?

Refraction

Refraction happens whenever light travels from one transparent substance to another. It only takes place where the two substance meet (at their interface). The change in speed causes a change in direction.

Practical air normal glass Ray box

NO NOT look directly at the bulbs

Lenses

What is refraction Why do cameras need lenses?

Refraction All: Describe some uses of a lenses Most: Describe refraction Some: Explain how concave and convex lenses work