photoelectric effect

IPA/fˌəʊtəʊɪlˈɛktɹɪk ɪfˈɛkt/

IPA/fˌoʊɾoʊᵻlˈɛktɹɪk ɪfˈɛkt/

1.名詞B2

釋義

the physical process in which light that strikes a metal surface causes free electrons to be released from that surface, converting light energy into electrical energy

例句

Einstein explained the photoelectric effect in a famous paper published in 1905.

the + photoelectric effect; used with definite article

Solar panels use the photoelectric effect to turn sunlight into electricity.

practical application: solar panels use the photoelectric effect

文法句型

the + photoelectric effect

photoelectric effect + noun

用法筆記

This is a scientific term from physics, usually used with the definite article 'the'. Albert Einstein won the Nobel Prize in Physics in 1921 for his theoretical explanation of this phenomenon, which was a key piece of evidence for the particle nature of light and the development of quantum theory.

常見錯誤

❌The photovoltaic effect and the photoelectric effect are the same thing.

✅The photoelectric effect involves electrons leaving a metal surface, while the photovoltaic effect generates voltage within a material.

💡These are related but different phenomena.

photoelectric effect