Lab IV: Converging Lens

• Supervisor: Mr. Liyang Ma
• Location: Room 214-220， Henglong Physics Building

• To determine the focal lengths of converging lenses by different methods, and to learn the structure of simple optical instrument such as microscope and telescope.

• Geometrical optics
• Optical instrument

Lab IV Converging lens

1. Optical track
2. converging lens
3. light source
4. object plane
5. image screen
6. mirror
7. diverging lens

1. Focal length by using the thin lens equation.
2. Autocollimation approach.
3. Bessel approach.
4. Measure the focal length of a diverging lens. (Optional)
5. Try to build a telescope with two converging lenses. (Optional)

1. What have you learned from this lab?
2. How do you evaluate each method?

• Adopted from “Astronomy Laboratory Manual - Hartnell College AST 1L ” http://www.hartnell.edu/faculty/pmoth/Files/AST1LAB/
• http://dev.physicslab.org/Document.aspx?doctype=3&filename=GeometricOptics_ConvergingLenses.xml

converging_lens.pdf

discussion_of_labs_vii_viii_and_ix.pdf