🔖 Topics
- Ideal lenses
- Lens makers equation
- Focal length
- Object distance and image distance
- Magnification
🎯 Objectives
- Describe the properties of an ideal lens
- Calculate the properties of images formed by an ideal lens
📋 Sequence
We will cover converging and diverging lenses, touching on the following details:
- Positive / negative conventions
- Object further out than the focal point
- Object closer in than the focal point
- Object at the focal point
🖥️ Animations, Simulations, Activities
N/A
📝 Practice Problems
For each of the problems below, sketch out a ray diagram of the system before doing any calculations.
- An object is placed 10 cm in front of a converging lens with a focal length of 25 cm. What is the image distance from the lens? Is it in front of or behind the lens?
- An object is placed 30 cm in front of a diverging lens with a focal length of 10 cm. What is the magnification of the final image?
- An object is placed 45 cm in front of a converging lens with a focal length of 50 cm. What is the magnification of the final image?
✅ Partial Solutions
N/A
📘 Connected Resources
N/A