The graph above shows the relationship between sin i and sin r for a ray of light in air incident on a liquid surface. If i and r are respectively angles of incidence and refraction, deduce the refractive index of the liquid from the graph
a
1.63
b
1.50
c
1.33
d
1.25
e
0.08
Explanation
Correct Option
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legoking
2 years ago
The refractive index will be considered as the slope of the graph
Slope=(y2-y1) divided by (x2-x1)
X2=0.8
X1=0
Y2=1
Y1=0
Therefore, slope=(1-0) divided by (0.8-0)
=1 divided by 0.8
=1.25
