Physical Science Activities Manual ________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________ Center of Excellence for Science and Mathematics Education at The University of Martin 6. Are there other substances that allow light to travel a curved path by way of total reflection? [A curved piece of Lucite ® will work.] C. Mirages 1. We have seen that refraction occurs because light travels at different speeds through two different media such as air and glass. We also know that light travels at different speeds in a given medium depending on the temperature. 2. Would light traveling through two adjacent regions of the same medium heated to different temperature be refracted? How could this be used to explain the formation of mirages in the desert or on the highways when it is very hot? D.
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