Chapter Name : Dual Nature Of Radiation And Matter |
Sub Topic Code : 101_12_11_04_01 |
Topic Name : Experimental Study Of Photoelectric Effect |
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Sub Topic Name : Experimental Study Of Photoelectric Effect |
In the photoelectric effect, electrons are emitted from matter (metals and non-metallic solids, liquids or gases) as a consequence of their absorption of energy from electromagnetic radiation of very short wavelength, such as ultraviolet radiation.
Photoelectric effect
Video camera and digital cameras work on the principle of the photoelectric effect.
What is electron emission ?
Key Words | Definitions (pref. in our own words) |
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Photoelectric effect | The photoelectric effect refers to the emission, or ejection, of electrons from the surface of, generally, a metal in response to the incident light. |
Gadgets | How it can be used |
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Video camera | Video camera tubes in the early days of television used the photoelectric effect. |
Digital cameras. A photon hits the sensor, liberating an electron which is then measured by the camera.
Studios
Examples | Explainations |
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Camera | Works on the principle of Photoelectric effect |
EXPERIMENTAL STUDY OF PHOTOELECTRIC EFFECT.
The intensity and frequency of the incident light can vary, as can the potential difference .
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