Reflection through lenses

Investigating Refraction Through Lenses 

Aim: To investigate how different types of lenses refract light.

Equipment: Triple-slit ray slide, power supply, a concave lens and a convex lens.

Method:

1. Set up a ray box, triple-slit ray slide, and power supply, a concave lens and a convex lens. 

2. Place the convex lens in the space below. Place the ray box at the top of the page and shine the three rays of light at the lens. Make sure the central light ray hits the lens at 90 as indicated in the diagram. 

3. Carefully trace the direction of the incoming and refracted rays.

4. Repeat using the concave lens

 Concave lens

  convex  lens