Module 10: Optics Topic 4 Application: Spherical Lenses

Create each of the situations below. In doing so, design a lens system for each. Be sure to choose a focal length for your lens and a position for the object. Use a ray diagram to justify your choices. Classify your images by type (real/virtual), orientation (upright/inverted), and size (smaller/same size/larger).

1. A magnifying glass that will help stamp collectors see details on their treasures

2. A movie projector that will produce an enlarged, real image.

3. A lens that will make a reduced, virtual image for use as a telescope objective.

Checklist:

1. Each of the three situations is represented.

1. For each situation, a focal length for your lens and a position for the object are given to create the effect described.

1. For each situation, a scaled ray diagram is drawn on grid paper to support the student's choices in setting up the situation.

1. For each situation, images are classified by type (real/virtual), orientation (upright/inverted), and size (smaller/same size/larger).

1. Presents information clearly to audience.