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Student experiment using an optics bench to build telescopes for use with a viewing screen.

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Students construct an astronomical telescope, a Galilean telescope, and a compound microscope on the optical bench. Using a viewing screen with grid, they find and describe the ways in which images are changed by the multiple lens systems.

The parallax method is used to locate virtual images. Students draw ray diagrams and measure the magnification of the instruments.

PASCO Advantage

Using the Basic Optics Track and Adjustable Lens Holders makes it easy for students to quickly build each of the instruments. Open construction means that all students can see the location and types of lenses used.