How red glass converts incedent light to red

[Goodver]

suppose the white light is incedent on a red glass. Behind the glass we see only red light and glass gets warmer.

how exactly white light transformed to red light. Does that mean that the material of the glass absorbs all wavelengths (theoretically) except of the red region? If so what the property of the material responsible for omiting red light?

or it is a matter of scattering of light? then why the material emits only red?

 

[dauto]

That's right. Red glass absorbs other wavelength letting only red through.

 

[mfb]

If so what the property of the material responsible for omiting red light?

Quantum mechanics. Red light has photons with a specific energy range. To absorb a photon, the material needs transitions between different energy levels that differ by those energies. If those do not exist (or if they are rare), the light can go through.

This is a very simplified description, of course.

 

[Goodver]

thank you!

 

[sardar]

I can explain the process of how red glass converts incident light to red. When white light, which contains all wavelengths of visible light, hits the surface of the red glass, the glass absorbs all of the wavelengths except for red. This is because the material of the glass has a specific molecular structure that allows it to selectively absorb certain wavelengths of light.

The absorption of all other wavelengths of light results in the glass appearing red to our eyes. This is known as selective absorption. The property of the material responsible for this selective absorption is its atomic and molecular structure, specifically the arrangement of its electrons.

It is not a matter of scattering of light, as scattering would result in the glass appearing white or a mix of colors. The material of the glass specifically absorbs all other wavelengths and only allows red light to pass through, giving the appearance of a red glass.

In addition to this, the absorption of light also results in the material of the glass heating up. This is due to the absorbed light being converted into heat energy. This explains why the glass gets warmer when white light is incident upon it.

In summary, the process of how red glass converts incident light to red is due to the selective absorption of all wavelengths except for red by the material of the glass. This is a result of its atomic and molecular structure, and not due to scattering of light.