- #1
vf_one
- 14
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Hi everyone
I'm having a bit of trouble solving this question. If anyone can help that would be awesome
Homework Statement
Rank the materials in the diagram according to their refractive indices from greatest to smallest (see attachment)
The attempt at a solution
The greater the refractive index of a material, the slower the wave will travel and therefore the more it will bend towards the normal.
From the diagram, the angle of refraction in medium C is smaller than the angle of incidence in medium A so nC > nA
The angle of incidence in medium C is smaller than the angle of refraction in medium B so nC > nB
the wave seems to travel a lot faster in medium B than A as it bends further away from the normal so nA>nB
So nC > nA > nB
But the answer is nA > nC > nB
Why is nA > nC??
I'm having a bit of trouble solving this question. If anyone can help that would be awesome
Homework Statement
Rank the materials in the diagram according to their refractive indices from greatest to smallest (see attachment)
The attempt at a solution
The greater the refractive index of a material, the slower the wave will travel and therefore the more it will bend towards the normal.
From the diagram, the angle of refraction in medium C is smaller than the angle of incidence in medium A so nC > nA
The angle of incidence in medium C is smaller than the angle of refraction in medium B so nC > nB
the wave seems to travel a lot faster in medium B than A as it bends further away from the normal so nA>nB
So nC > nA > nB
But the answer is nA > nC > nB
Why is nA > nC??