Term 2 Science Test

Managed to obtain a decent score for the Term 2 Science Test, though I feel that there is one question where I completely killed myself. I did not have ample time to finish it (and paper itself, obviously), and I think by the time I started on the ray diagrams there were only 60 ticks of the second-hand left before the end of the examination. Under such circumstances, I did not really think about how to solve the question and dived straight into drawing the path of the light ray. Furthermore, due to insufficient revision, my instinctive reaction was to draw a refracted light ray as it enters and leaves the medium, a glass semicircular object (if I remembered correctly). I certainly need to revise more for the upcoming science tests in order to prevent myself from making such mistakes again.