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Hi Don,

As I have stated above, I cant do an extrapolation to higher wavelengths as the function is not a simple function for curve fitting. Mathematica that I have been using for the calculation is using a specific algorithm to do its calculations, but from my reading there are different forms of algorithm which will give slightly different answers (and have different accuracies). I have no idea which algorithm mathematica uses, nor can i vouch for its accuracy. If you want to be completely scientific, you have to bear in mind this fact of different computational methods, and the limitations of these methods.

What this means is that all the values calculated above (while self consistent as they use the same algorithm) may have different values.

Alas, I do not have enough knowledge in this area to know which algorithm to use in which circumstance, and I dont have the time to chase up on the different computational methods.

What i will say is this, from looking at the graphs of the index of air, I dont think there is a wavelength visible or not, that will give you exactly those angles and have a refractive index of ice of 1.2999. I cant say for sure that there is not, since there are many variables to consider in the calculation (not just angles and wavelength). Personally though, I think the match of red light of 700 nm of 1.2999 with the calculated value of 1.3069 is pretty good.

Jonny




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Subject Views Written By Posted
Totally confused on The Periodic Table 1175 Ahatmose 05-Feb-12 03:39
Re: Totally confused on The Periodic Table 396 JonnyMcA 05-Feb-12 09:55
Re: Totally confused on The Periodic Table 282 Ahatmose 05-Feb-12 14:57
Re: Totally confused on The Periodic Table 366 JonnyMcA 05-Feb-12 15:52
Re: Totally confused on The Periodic Table 357 JonnyMcA 05-Feb-12 16:01
Re: Totally confused on The Periodic Table 320 Ahatmose 06-Feb-12 03:10
Re: Totally confused on The Periodic Table 321 JonnyMcA 06-Feb-12 18:26
Re: Totally confused on The Periodic Table 340 Spiros 05-Feb-12 22:00
Re: Totally confused on The Periodic Table 350 JonnyMcA 05-Feb-12 22:47
Re: Totally confused on The Periodic Table 339 Spiros 07-Feb-12 22:40
Re: Totally confused on The Periodic Table 345 Susan Doris 06-Feb-12 08:43
Re: Jonny/Ahatmose 371 Thunderbird 08-Feb-12 03:02
Index of Refraction 394 Ahatmose 09-Feb-12 03:08
Re: Index of Refraction 364 Ahatmose 09-Feb-12 03:25
Re: Index of Refraction 1357 JonnyMcA 09-Feb-12 08:34
Re: Index of Refraction 371 Ahatmose 09-Feb-12 16:10
Index of Refraction: The solution ? 415 Ahatmose 09-Feb-12 17:41
Re: Index of Refraction: The solution ? 372 JonnyMcA 11-Feb-12 09:03
Re: Index of Refraction 364 JonnyMcA 11-Feb-12 08:59
Re: Index of Refraction 353 Ahatmose 11-Feb-12 12:29
Re: Index of Refraction 419 JonnyMcA 11-Feb-12 14:12
Re: Index of Refraction 359 Ahatmose 12-Feb-12 13:11
Addendum: Index of Refraction 344 Ahatmose 12-Feb-12 13:19
Second Addendum: Index of Refraction 295 Ahatmose 12-Feb-12 13:26
Third Addendum: Index of Refraction 327 Ahatmose 12-Feb-12 13:32
Re: Third Addendum: Index of Refraction 337 JonnyMcA 12-Feb-12 16:03
Re: Third Addendum: Index of Refraction 344 JonnyMcA 12-Feb-12 21:17
Re: Second Addendum: Index of Refraction 352 JonnyMcA 12-Feb-12 15:40
Re: Addendum: Index of Refraction 336 JonnyMcA 12-Feb-12 15:34
Re: Index of Refraction 398 JonnyMcA 12-Feb-12 13:30
Re: Index of Refraction 332 Ahatmose 12-Feb-12 13:48
Re: Index of Refraction 342 JonnyMcA 12-Feb-12 15:32
Re: Index of Refraction 352 Ahatmose 13-Feb-12 01:23
Re: Index of Refraction 395 JonnyMcA 13-Feb-12 08:23
Re: Index of Refraction 375 Ahatmose 13-Feb-12 16:01
Re: Index of Refraction 372 JonnyMcA 13-Feb-12 19:01
Re: Index of Refraction 350 Ahatmose 13-Feb-12 16:47
Re: Index of Refraction 334 JonnyMcA 13-Feb-12 19:07
Re: Index of Refraction 343 Ahatmose 13-Feb-12 17:37
Re: Index of Refraction 334 JonnyMcA 13-Feb-12 19:20
Re: Index of Refraction 474 Spiros 05-Apr-18 14:20
Talk about stretching credibility: Index of Refraction 359 Ahatmose 13-Feb-12 05:48


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