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photoelectric effect

emission of electrons when light hits a material
Thing physical_phenomenon Q83213
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Summary

photoelectric effect is a physical phenomenon[1]. It ranks in the top 7% of physical phenomenon entities by monthly Wikipedia readership (8,833 views/month).[2]

Key Facts

  • Instance of: principle[3]
  • Subclass of: quantum mechanics[4]
  • Commons category: Photoelectric effect[5]
  • Has part(s): photoelectron[6]
  • Topic's main category: Category:Photoelectric effect[7]
  • Commons gallery: Photoelectric effect[8]
  • Solved by: Albert Einstein[9]
  • Described by source: Armenian Soviet Encyclopedia[10], Meyers Konversations-Lexikon, 4th edition (1885–1890)[11]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[12]

Why It Matters

photoelectric effect has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[13] It is known by 111 alternative names across languages and contexts.[14]

Related Entities

Albert Einstein Bobo-Dioulasso

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . Retrieved . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] ↑ . Wikidata sitelinks. wikidata.org.
  3. [14] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). photoelectric effect. Retrieved October 18, 2026, from https://4ort.xyz/entity/photoelectric-effect
MLA “photoelectric effect.” 4ort.xyz Knowledge Graph, 4ort.xyz, 18 Oct. 2026, https://4ort.xyz/entity/photoelectric-effect.
BibTeX @misc{4ortxyz_photoelectric-effect_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{photoelectric effect}}, year = {2026}, url = {https://4ort.xyz/entity/photoelectric-effect}, note = {Accessed: 2026-10-18}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): photoelectric effect — https://4ort.xyz/entity/photoelectric-effect (retrieved 2026-10-18)

Canonical URL: https://4ort.xyz/entity/photoelectric-effect · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 21w ago · MarketaGeneea · 2026-05-25 view diff on Wikidata ↗
    Instance of → physical phenomenon, principle
    "/* wbremoveclaims-remove:1| */ Instance of: individual animal"
  2. 22w ago · ~2026-29042-73 · 2026-05-13 view diff on Wikidata ↗
    Instance of → physical phenomenon, principle
    Instance of → —
    Has part(s) → photoelectron
    On focus list of wikimedia project → Wikipedia:Vital articles/Level/4
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1 */ Instance of: individual animal"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.