सभी सात रंगों के प्रकाश में से, प्रिज्म पर गिरने के बाद कौन सा रंग सबसे अधिक विचलित होता है?

In the standard ray diagram showing the path of a ray of light through a triangular glass prism, if N is the normal at the point of incidence B on the first face, O is the intersection of the extended incident and emergent rays, and E is a point on the extended incident ray, then the angle of incidence and the angle of deviation are respectively represented by which angles?