The figure above shows a plot of angles of deviation through a glass prism when light is incident at \theta degrees on the prism. The incident angle that produces the minimum deviation is
Attached Figure / Diagram
A
20o
B
18o
C
35o
D
25o
Verified Correct Answer: D.
Physical Principles & Numerical Solution
From the given graph, when the angle of minimum deviation = 18º, the angle of incidence = 25º
Source: Myschool Past Questions Archive (Record #14271)