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Solutions:
a) Refraction b) 48.6o c) c = 41.8o e) 70o
d) Total internal reflection has occured, as the angle of incidence is greater than critical angle and the light is traveling from a denser medium (glass) towards a less dense medium (air)
Click on the video tutorial for explanation and working for part (a) and (b).
Click on the video tutorial for explanation and working for part (c) to (e).
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