A Certain Kind of Glass Has N_blue = 1

Multiple Choice

A certain kind of glass has n_blue = 1.650 for blue light and n_red = 1.610 for red light.If a beam of white light (containing all colors) is incident at an angle of 60.6°,what is the angle between the red and blue light inside the glass?

A) 0.91°
B) 0.89°
C) 60°
D) 0.78°
E) 89°