Can we accurately predict the speed of light using the index of refraction?

AI Thread Summary
The discussion focuses on comparing measured values of the speed of light with known standards using the index of refraction. The index of refraction at standard conditions is noted as 1.000293, while the user's lab result was 1.0002343, indicating a close approximation. Participants suggest that factors like wavelength, temperature, pressure, humidity, and carbon dioxide content can influence measurements. A resource for making quick comparisons in future experiments is also mentioned. Overall, the conversation emphasizes the importance of understanding environmental factors in light speed measurements.
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Homework Statement



I was wondering if anyone knew of an equation or table that I could compare my labs measured speed of light to? I'm aware that the index of refraction is 1.000293 at 1 atm and 0°c but was hoping to find a way to check our values specifically. We ended up with 1.0002343 so I know we were close.

thanks for the help!
 
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You can play around with effects of wavelength, temperature and pressure (as well as humidity and carbon dioxide content) here.
 
Perfect, thank you! That put us a bit closer to the index (I figured this was the case) and gives me a way to make quick comparison's for future experiments. Really appreciate it.
 

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