Calculate the refractive index of the material for the gl...
Calculate the refractive index of the material for the glass prism in the diagram above
A.
√2/2
B.
4/3
C.
√2
D.
3/2
Correct answer is C
| n = | sin((A+D)/2) |
| sin(A/2) |
where A = the refracting angle of the prism(60o)
D = angle of deviation of the ray (30o)
| n = | sin((60+30)/2) |
| sin(60/2) |
| = | sin 45 |
| sin 30 |
=
1/√2/1/2
√2/2/1/2
= √2/2 x 2/1 = √2
n = √2
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