is the graph obtained by plotting angle of incidence and angle of deviation a pure parabola and what does this - Physics - Ray Optics And Optical Instruments

Question

is the graph obtained by plotting angle of incidence and angle
of deviation a pure parabola and what does this graph
indicate?????

Somnath physics · Answer

Hi,
Here is the plot between angle of incidence and the angle of
deviation
<img alt="" width="556" height="201" src=
"https://s3mn%20mnimgs%20com/img/shared/discuss_editlive/17(3)_8913849291362238268%20png">
i is the angle of incidence, e is the angle of
emergence, A is the angle of the prism and
Î´ is the angle of deviation
The graph is a parabola
The graph indicates that each prism material has its own unique
minimum angle of deviation The red circle on the graph corresponds
to the coordinate of angle of incidence for which minimum angle of
deviation is observed

is the graph obtained by plotting angle of incidence and angle of deviation a pure parabola and what does this graph indicate?????