Does Light Amplitude Depend on Frequency?

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SUMMARY

The discussion centers on the relationship between light amplitude and frequency, specifically questioning whether light has an amplitude and how it relates to frequency. It is established that the amplitude squared of light waves correlates to the number of photons, which only changes upon interaction with matter. The velocity of waves remains constant in a uniform medium, while frequency and wavelength vary. The equation for wave energy is proportional to the amplitude squared, reinforcing the connection between amplitude and energy in wave mechanics.

PREREQUISITES
  • Understanding of wave mechanics, including amplitude, frequency, and wavelength.
  • Familiarity with the relationship between energy and amplitude in wave physics.
  • Basic knowledge of light properties, including photon behavior and interactions with matter.
  • Concepts of classical mechanics, particularly kinetic energy and its relation to mass and velocity.
NEXT STEPS
  • Research the equation for wave energy and its derivation, focusing on amplitude squared.
  • Explore the principles of wave-particle duality in quantum mechanics.
  • Study the interaction of light with matter, including absorption and scattering processes.
  • Examine the mathematical relationship between velocity, frequency, and wavelength in various media.
USEFUL FOR

Students and professionals in physics, particularly those interested in wave mechanics, quantum optics, and the properties of light. This discussion is beneficial for anyone seeking to deepen their understanding of the interplay between light amplitude and frequency.

Joans
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Hey I have several questions about waves and particles.. I believe I mixing it...

Okay firstly we have two stones, One big and one small. First i drop to water one and measure amplitude, freaquency, velocity and energy of a wave. And then another one..
What results I would get, will velocity be the same?
I want to see ant equation of wave energy. I found only that it is proporcianal to amplitude squared...


Does light have an amplitude? How does it depends from freaquency?


And here comes in my imagination:
For example when light goes at c, and freaquency f and we add some energy to it, since it already go at maximum speed so kinetic energy is max, then all energy is transferred to waving energy...
Or supose we have an object with mass m. Then we add some energy to it most of energy goes to kinetic, but not all, i meen not all, according to classical mechanincs... But some to waving energy... Then energy of object: mc2=m0c2+ Ekinetic+Ewaving
I believe that it is wrong, but i really like this idea :)
 
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firstly the waves would move at the same velocity through the water, however the frequency and the wavelength will be different, This is due to the velocity of a wave (think sound) remaining constant within a uniform medium. The relation is velocity = frequency x wavelength

In regards to the equation including wave energy I have no idea. However maybe using the equation Ek = 1/2 mv2 considering particles in the water during a wave undergo an eliptical motion. (velocity for circular motion = 2piRf)

this was in another thread;

The amplitude^2 of lightwaves is equivalent to the number of photons. It doesn't change spontaneously, it changes when it interacts with matter, where each photon either transmits, reflects, scatters, or gets absorbed.
 

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