KT-162 JAV 3.1 Explain the experiment showing how light can be given a particle nature. ### Answer: The experiment that demonstrates light's particle nature is the **photoelectric effect**. Here's how it works: 1. **Setup**: The experiment has a metal plate in a vacuum. Whenever light shines on the plate, electrons are ejected from it. 2. **Wavelength**: When light's wavelength is less than a certain value (when its frequency is greater than a certain value), electrons are ejected. 3. **Intensity**: If the frequency is low, no electrons are ejected, regardless of light's intensity. 4. **Energy**: The energy of the ejected electrons depends only on the wavelength of the light (its frequency). 5. **Conclusion**: The photoelectric effect suggests that light is composed of **particles** (called **photon**): each photon of light has a well-defined energy, and it must knock electrons off of the metal in order to eject them. Newton's idea of light being composed of particles is therefore supported by this experiment. ### Final Answer: The **photoelectric effect** experiment demonstrates light's particle nature. It shows that when light is shone on a metal plate, electrons are ejected, indicating that light is composed of **particles** (called **photon**). - Cuplikan Gratis dan Subtitle Bahasa Indonesia srt.

58 minit0 tontonan

Unduh Subtitle KT-162