A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. Draw a labeled ray diagram to show the complete path of this ray of light. Mark the two points where the refraction of light takes place. What can you say about the final direction of ray of light?


A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. We can say about the final direction of the ray of light is that it is same as the incident direction.


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