Why placing a blue filter in front of a light source will give blue li

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SUMMARY

Placing a blue filter in front of a light source results in blue light due to the material's allowed electronic transitions and vibrational modes, not polarization. The filter selectively absorbs other wavelengths while transmitting blue wavelengths, which is a fundamental property of the filter material. This phenomenon is rooted in the physics of light and materials, specifically how they interact with different wavelengths.

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  • Familiarity with vibrational modes in solid-state physics
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hangover
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It may be a very simple question.
Why placing a blue filter in front of a light source will give blue light?Is this phenonmenon concerned with polarization of light(the vibration of electrons of the filter giving blue light)?
Thanks very much!
 
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No it has for sure nothing to do with polarisation, but I would say (the only reason that makes sense) that it's because of the allowed electronic transitions in the material or the allowed vibrations modes.
 

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