E = Em sin(kx-wt) and I = T+R what wavelength is reflected wave

AI Thread Summary
When a light wave enters a medium, its electric field value decreases, leading to the relationship where the incident wave equals the sum of the transmitted and reflected waves. If the electric field of the reflected wave is known, the wavelength of the reflected wave can be derived using the equations E = Em sin(kx - wt) and k = 2π/wavelength. The wavelength of the reflected wave is the same as that of the incident wave, indicating that photon energy remains unchanged upon reflection. The discussion seeks clarity on whether the question is correctly stated and if the relationships can yield the wavelength of the reflected wave. Overall, the key point is that the reflected wave's wavelength matches that of the incident wave.
morrobay
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When a light wave enters a medium the electric field value of the wave is smaller in the medium.
With the incident wave = transmission wave + reflected wave. If the E field of the
reflected wave is known . Can the wavelength of the reflected wave be obtained from
these relationships :
E = Em sin (kx=wt)
k = 2 pi/wavelength
This question is related to this thread https://www.physicsforums.com/showthread.php?t=463293
 
Last edited:
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morrobay said:
When a light wave enters a medium the electric field value of the wave is smaller in the medium.
With the incident wave = transmission wave + reflected wave. If the E field of the
reflected wave is known . Can the wavelength of the reflected wave be obtained from
these relationships :
E = Em sin (kx=wt)
k = 2 pi/wavelength
This question is related to this thread https://www.physicsforums.com/showthread.php?t=463293

If this question is stated correctly does it have an answer ?
If not stated correctly can someone restate w/correction
Asking if the electric field value of the reflected wave is known based on:
E reflected wave = E incident wave - E transmitted wave - E absorbed wave
Then can wavelength of reflected wave be obtained from above formulas.
 
Last edited:
The wavelength of the reflected wave is the same as the incident wave. Photon energy is not changed on reflection.
 

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