A ray incident on a glass prism undergoes minim... - JAMB Physics 2003 Question
A ray incident on a glass prism undergoes minimum deviation when the
A
incident angle is equal to the angle of refraction
B
refraction angle equals 90o
C
incident angle equals 90o
D
incident angle is equal to the angle of emergence
correct option: d
At minimum deviation, it is observed that light passes symmetrically through, the prism such that the angle of incidence (io) is angle to the angle of emergency (eo).(i/e Io = eo)
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