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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 1087 Ahatmose 05-Feb-12 03:39
Re: Totally confused on The Periodic Table 371 JonnyMcA 05-Feb-12 09:55
Re: Totally confused on The Periodic Table 259 Ahatmose 05-Feb-12 14:57
Re: Totally confused on The Periodic Table 345 JonnyMcA 05-Feb-12 15:52
Re: Totally confused on The Periodic Table 328 JonnyMcA 05-Feb-12 16:01
Re: Totally confused on The Periodic Table 296 Ahatmose 06-Feb-12 03:10
Re: Totally confused on The Periodic Table 296 JonnyMcA 06-Feb-12 18:26
Re: Totally confused on The Periodic Table 315 Spiros 05-Feb-12 22:00
Re: Totally confused on The Periodic Table 315 JonnyMcA 05-Feb-12 22:47
Re: Totally confused on The Periodic Table 312 Spiros 07-Feb-12 22:40
Re: Totally confused on The Periodic Table 308 Susan Doris 06-Feb-12 08:43
Re: Jonny/Ahatmose 341 Thunderbird 08-Feb-12 03:02
Index of Refraction 365 Ahatmose 09-Feb-12 03:08
Re: Index of Refraction 341 Ahatmose 09-Feb-12 03:25
Re: Index of Refraction 1284 JonnyMcA 09-Feb-12 08:34
Re: Index of Refraction 335 Ahatmose 09-Feb-12 16:10
Index of Refraction: The solution ? 359 Ahatmose 09-Feb-12 17:41
Re: Index of Refraction: The solution ? 348 JonnyMcA 11-Feb-12 09:03
Re: Index of Refraction 339 JonnyMcA 11-Feb-12 08:59
Re: Index of Refraction 324 Ahatmose 11-Feb-12 12:29
Re: Index of Refraction 362 JonnyMcA 11-Feb-12 14:12
Re: Index of Refraction 334 Ahatmose 12-Feb-12 13:11
Addendum: Index of Refraction 324 Ahatmose 12-Feb-12 13:19
Second Addendum: Index of Refraction 266 Ahatmose 12-Feb-12 13:26
Third Addendum: Index of Refraction 296 Ahatmose 12-Feb-12 13:32
Re: Third Addendum: Index of Refraction 303 JonnyMcA 12-Feb-12 16:03
Re: Third Addendum: Index of Refraction 319 JonnyMcA 12-Feb-12 21:17
Re: Second Addendum: Index of Refraction 326 JonnyMcA 12-Feb-12 15:40
Re: Addendum: Index of Refraction 307 JonnyMcA 12-Feb-12 15:34
Re: Index of Refraction 366 JonnyMcA 12-Feb-12 13:30
Re: Index of Refraction 311 Ahatmose 12-Feb-12 13:48
Re: Index of Refraction 324 JonnyMcA 12-Feb-12 15:32
Re: Index of Refraction 325 Ahatmose 13-Feb-12 01:23
Re: Index of Refraction 365 JonnyMcA 13-Feb-12 08:23
Re: Index of Refraction 351 Ahatmose 13-Feb-12 16:01
Re: Index of Refraction 342 JonnyMcA 13-Feb-12 19:01
Re: Index of Refraction 320 Ahatmose 13-Feb-12 16:47
Re: Index of Refraction 307 JonnyMcA 13-Feb-12 19:07
Re: Index of Refraction 321 Ahatmose 13-Feb-12 17:37
Re: Index of Refraction 306 JonnyMcA 13-Feb-12 19:20
Re: Index of Refraction 438 Spiros 05-Apr-18 14:20
Talk about stretching credibility: Index of Refraction 329 Ahatmose 13-Feb-12 05:48


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