# Photoelectric effect.

Qualitative demonstrations of photoelectric effect, using sun and carbon as sources. Experiments measure energy of photoelectron emitted from a potassium surface. With John Strong, assisted by William T. Plummer. The film was directed by Gene Kearney, noted for his film adaptation on Conrad Aiken's 'Silent Snow, Secret Snow' ( https://archive.org/details/silent_snow_secret_snow )

- Kind: Educational
- Year: 1961
- By: Kevin Smith
- Genres: Education, Science
- Archive: [Internet Archive](https://archive.org/details/PhotoElectricEffect)
- Licence or status: none stated by the archive
- Who can watch: Kids profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/PhotoElectricEffect?play=1)