What does "intensity of light" mean? - Physics Stack Exchange
Jul 14, 2018 · The term "intensity" has many meanings, and can be misleading depending on who interprets the word. Intensity here probably is intended to mean energy intensity- as in how …
What is the formula for the intensity of light, and how are amplitude ...
May 17, 2018 · What is the formula for the intensity of light, and how are amplitude, frequency and number of photons considered? Ask Question Asked 7 years, 7 months ago Modified 3 years, 8 …
What does the amplitude of a light wave tell us? How's it different ...
Jun 19, 2021 · The irradiance of light (Watt per square meter) is directly proportional to the square of the amplitude of the electromagnetic wave. In contrast, the energy of a single photon (the wave consists …
Light: Intensity vs Brightness - Physics Stack Exchange
Oct 19, 2020 · Is the intensity or brightness of light the same idea? In other words, when we are observing Malus's law, are we looking at the "brightness" of light? If they are not the same quantity, h...
energy - Frequency and intensity in photoelectric effect - Physics ...
Aug 21, 2020 · In the explanation of photoelectric effect it is written that intensity and frequency of radiation have different results i.e. higher intensity means greater number of emitted photoelectrons …
In the famous Einstein's Photoelectric effect, why does the intensity ...
Jun 16, 2016 · In general you're right - an electron being subject to interactions with more than a single photon may have a higher kinetic energy. However, in the vast majority of photoelectric setups you …
Is the intensity of light ONLY dependent on the number of photons, …
Dec 5, 2020 · Intensity is energy per area per time. Thus, it certainly does not only depend on the number of photons. Just take the same number of photons, but change their individual energy …
What is the relation between photoelectric current and frequency of ...
Finally as for the intensity of the ray and current saturation, if the intensity is high enough (very high number of incident photons) then all the electrons get the chance to be ejected (assuming $\nu$ high …
quantum mechanics - Light's inverse square law: Does it require a ...
May 3, 2016 · Does the inverse square law begin to take effect the moment light leaves its source? For example, does light's intensity decrease, i.e. does the area in which the photons might land increase, …
What is the difference between Luminous intensity and intensity of ...
Oct 11, 2020 · What is the difference between the Luminous intensity and intensity of illumination? Please explain with units and dimensions as well! I googled but I partially understood it!