E2-22 UMBRA AND PENUMBRA
- ID Code: E2-22
- Purpose: Illustrates shadow umbra and penumbra
- Description: The foam ball casts a shadow of each of the two point sources in the box. The umbra is where the two shadows overlap and the penumbra is where only one source is shadowed.
- Availability: Available
- Loc codes: E2, LS1