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Refraction problem help please :)

FudgeBrace · 2012-10-11 18:32:54

Ok so here's the question I'm stuck on. A ray of light leaves a rectangular diamond and enters air. It makes an angle of refraction of 15 degrees. If the refractive index of diamond is 2.42, find the angle of incidence. The answer is 6.1 degrees, and I haven't a clue how to do it. Thanks a million in advance.!!!:D

Comments

#32 12-10-2012 11:09pm

Indiego

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ConorCBS wrote: »

Nimrod 7 wrote: »

Can it? :eek:

Apparently so, says my book.

Indiego wrote: »

hmmm idk... maybe if it travels say 10km east and then heads back 5km west, its displacement will be 5km east, but it would be heading at a westward velocity? idk, complete guess tbh

I was thinking something along those lines in my head, I just couldn't fully grasp it and put it on paper. Thanks.

No problemo, tis only a guess though so idk if its right, seems logical though

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