WBJEE 2023 Physics & Chemistry Solved Paper

A ray of monochromatic light is incident on the plane surface of separation between two media X and Y with angle of incidence ' i ' in medium X and angle of refraction ' r ' in medium Y. The given graph shows the relation between sin‌i and sin‌r. If VX and VY are the velocities of the ray in media X and Y respectively, then which of the following is true?