Figures shows the graph of angle of deviation 
versus refractive index µ of the material of constant thin angled prisms corresponding to light rays incident at a small angle of incidence. The prism angle and slope of the line are respectively
A
and 2
B
and 
C
and 4
D
and 4
Text Solution
Verified by ExpertsThe correct answer is:
D
For small angled prism A
Comparing it with straight line equation extracted from graphs, 
We have 
slope 
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