Description: The filament of a lamp on a Variac is observed through lenses.
Instructions: May want to re-adjust in class, but a good starting setup is: light source (0 cm), +50 lens (15 cm), +150 lens (37 cm), fogged glass plate (68 cm).
Items Used:
Notes: Project with video camera for class. Math Description: None.
Size: 14" h x 54" w Condition: Good. Hazard: None.
