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Byju's Answer
Standard VIII
Physics
Fermat's Principle
Light ray tak...
Question
Light ray takes the path with shortest:
A
Distance
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B
Time
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C
Speed
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D
Displacement
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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 labelled ray diagram to show the completer 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?