Wavelengths of different colour of light

AI Thread Summary
Different colors of light from the same source can raise the temperature of water at varying rates, with red light being more effective than blue light. The discussion highlights the relationship between light color and wavelength, suggesting that longer wavelengths, like infrared, are more efficient for heating. Participants shared resources for understanding the wavelength ranges of visible light. The conversation emphasizes the practical applications of different wavelengths in heating. Overall, the experiment illustrates the impact of light color on temperature changes in water.
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Hey guys
Today I've done an experiment and I found that when different color of light from the same light source (put of different color filter on the same light source) shine on a beaker of water, the temperature of the water will rise.

And different light will rise the temp of water in different rate. Such as red light will rise the temperature higher than the blue light, but here is the question

May I know that the wavelength of different colur of light?
Thanks
 
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Look up visible light on wikipedia. It should give you approximate ranges for each color.
 
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/classroom_activities/herschel_bio.html
 
Andy Resnick said:
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/classroom_activities/herschel_bio.html

Thanks for the link andy! It was interesting!
 
Thanks so much for helping
 
Well the use infra red for heating stuff don't they.
The longer waves seem to work best.
 
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