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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 1116 Ahatmose 05-Feb-12 03:39
Re: Totally confused on The Periodic Table 379 JonnyMcA 05-Feb-12 09:55
Re: Totally confused on The Periodic Table 267 Ahatmose 05-Feb-12 14:57
Re: Totally confused on The Periodic Table 352 JonnyMcA 05-Feb-12 15:52
Re: Totally confused on The Periodic Table 338 JonnyMcA 05-Feb-12 16:01
Re: Totally confused on The Periodic Table 306 Ahatmose 06-Feb-12 03:10
Re: Totally confused on The Periodic Table 306 JonnyMcA 06-Feb-12 18:26
Re: Totally confused on The Periodic Table 324 Spiros 05-Feb-12 22:00
Re: Totally confused on The Periodic Table 327 JonnyMcA 05-Feb-12 22:47
Re: Totally confused on The Periodic Table 320 Spiros 07-Feb-12 22:40
Re: Totally confused on The Periodic Table 321 Susan Doris 06-Feb-12 08:43
Re: Jonny/Ahatmose 352 Thunderbird 08-Feb-12 03:02
Index of Refraction 373 Ahatmose 09-Feb-12 03:08
Re: Index of Refraction 349 Ahatmose 09-Feb-12 03:25
Re: Index of Refraction 1314 JonnyMcA 09-Feb-12 08:34
Re: Index of Refraction 343 Ahatmose 09-Feb-12 16:10
Index of Refraction: The solution ? 389 Ahatmose 09-Feb-12 17:41
Re: Index of Refraction: The solution ? 354 JonnyMcA 11-Feb-12 09:03
Re: Index of Refraction 345 JonnyMcA 11-Feb-12 08:59
Re: Index of Refraction 336 Ahatmose 11-Feb-12 12:29
Re: Index of Refraction 378 JonnyMcA 11-Feb-12 14:12
Re: Index of Refraction 342 Ahatmose 12-Feb-12 13:11
Addendum: Index of Refraction 331 Ahatmose 12-Feb-12 13:19
Second Addendum: Index of Refraction 278 Ahatmose 12-Feb-12 13:26
Third Addendum: Index of Refraction 305 Ahatmose 12-Feb-12 13:32
Re: Third Addendum: Index of Refraction 311 JonnyMcA 12-Feb-12 16:03
Re: Third Addendum: Index of Refraction 325 JonnyMcA 12-Feb-12 21:17
Re: Second Addendum: Index of Refraction 334 JonnyMcA 12-Feb-12 15:40
Re: Addendum: Index of Refraction 316 JonnyMcA 12-Feb-12 15:34
Re: Index of Refraction 375 JonnyMcA 12-Feb-12 13:30
Re: Index of Refraction 319 Ahatmose 12-Feb-12 13:48
Re: Index of Refraction 331 JonnyMcA 12-Feb-12 15:32
Re: Index of Refraction 333 Ahatmose 13-Feb-12 01:23
Re: Index of Refraction 377 JonnyMcA 13-Feb-12 08:23
Re: Index of Refraction 360 Ahatmose 13-Feb-12 16:01
Re: Index of Refraction 351 JonnyMcA 13-Feb-12 19:01
Re: Index of Refraction 328 Ahatmose 13-Feb-12 16:47
Re: Index of Refraction 315 JonnyMcA 13-Feb-12 19:07
Re: Index of Refraction 328 Ahatmose 13-Feb-12 17:37
Re: Index of Refraction 313 JonnyMcA 13-Feb-12 19:20
Re: Index of Refraction 448 Spiros 05-Apr-18 14:20
Talk about stretching credibility: Index of Refraction 337 Ahatmose 13-Feb-12 05:48


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