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As explained in a previous reply there are values of wavelength for which n = 1.2999 for ice at -40 C, but the problem is the angles would most likely have to be different.

However, we can look at it this way. If we assume that n(2) = 1.2999, and that the angles are as given, we can calculate what the refractive index of the air must be to produce this result (i.e. n(1)).

We find that the refractive index of air must be 1.000329699. This implies that the wavelength of light must be greater than 1250 nm (since this is the highest i can calculate for you using the Mathematica program i linked to). The refractive index of air is less than 1.000333994 above 1250 nm. However, I may be able to find an approximate wavelength for you later as it by fitting data points and extrapolating to higher wavelengths. BUT the refractive index of air must be either 8222, 12109, 30826, or 46423.5 nm (we have excluded the 84.815 and 1095 values) since these are the wavelengths that produce a refractive index of ice at -40 C of n(2) = 1.2999. Thus, if the extrapolated wavelength is not at these values, then there is no wavelength that can be used to produce the required angles for air and ice at - 40C.

Jonny




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Subject Views Written By Posted
Totally confused on The Periodic Table 1152 Ahatmose 05-Feb-12 03:39
Re: Totally confused on The Periodic Table 384 JonnyMcA 05-Feb-12 09:55
Re: Totally confused on The Periodic Table 271 Ahatmose 05-Feb-12 14:57
Re: Totally confused on The Periodic Table 357 JonnyMcA 05-Feb-12 15:52
Re: Totally confused on The Periodic Table 347 JonnyMcA 05-Feb-12 16:01
Re: Totally confused on The Periodic Table 310 Ahatmose 06-Feb-12 03:10
Re: Totally confused on The Periodic Table 312 JonnyMcA 06-Feb-12 18:26
Re: Totally confused on The Periodic Table 330 Spiros 05-Feb-12 22:00
Re: Totally confused on The Periodic Table 335 JonnyMcA 05-Feb-12 22:47
Re: Totally confused on The Periodic Table 328 Spiros 07-Feb-12 22:40
Re: Totally confused on The Periodic Table 328 Susan Doris 06-Feb-12 08:43
Re: Jonny/Ahatmose 361 Thunderbird 08-Feb-12 03:02
Index of Refraction 386 Ahatmose 09-Feb-12 03:08
Re: Index of Refraction 353 Ahatmose 09-Feb-12 03:25
Re: Index of Refraction 1334 JonnyMcA 09-Feb-12 08:34
Re: Index of Refraction 358 Ahatmose 09-Feb-12 16:10
Index of Refraction: The solution ? 405 Ahatmose 09-Feb-12 17:41
Re: Index of Refraction: The solution ? 363 JonnyMcA 11-Feb-12 09:03
Re: Index of Refraction 355 JonnyMcA 11-Feb-12 08:59
Re: Index of Refraction 343 Ahatmose 11-Feb-12 12:29
Re: Index of Refraction 391 JonnyMcA 11-Feb-12 14:12
Re: Index of Refraction 350 Ahatmose 12-Feb-12 13:11
Addendum: Index of Refraction 335 Ahatmose 12-Feb-12 13:19
Second Addendum: Index of Refraction 287 Ahatmose 12-Feb-12 13:26
Third Addendum: Index of Refraction 315 Ahatmose 12-Feb-12 13:32
Re: Third Addendum: Index of Refraction 321 JonnyMcA 12-Feb-12 16:03
Re: Third Addendum: Index of Refraction 337 JonnyMcA 12-Feb-12 21:17
Re: Second Addendum: Index of Refraction 343 JonnyMcA 12-Feb-12 15:40
Re: Addendum: Index of Refraction 323 JonnyMcA 12-Feb-12 15:34
Re: Index of Refraction 386 JonnyMcA 12-Feb-12 13:30
Re: Index of Refraction 323 Ahatmose 12-Feb-12 13:48
Re: Index of Refraction 337 JonnyMcA 12-Feb-12 15:32
Re: Index of Refraction 340 Ahatmose 13-Feb-12 01:23
Re: Index of Refraction 384 JonnyMcA 13-Feb-12 08:23
Re: Index of Refraction 366 Ahatmose 13-Feb-12 16:01
Re: Index of Refraction 363 JonnyMcA 13-Feb-12 19:01
Re: Index of Refraction 336 Ahatmose 13-Feb-12 16:47
Re: Index of Refraction 322 JonnyMcA 13-Feb-12 19:07
Re: Index of Refraction 335 Ahatmose 13-Feb-12 17:37
Re: Index of Refraction 323 JonnyMcA 13-Feb-12 19:20
Re: Index of Refraction 458 Spiros 05-Apr-18 14:20
Talk about stretching credibility: Index of Refraction 351 Ahatmose 13-Feb-12 05:48


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