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Question

1. Play the game following the link. https://www.physicsclassroom.com/Physics-Interactives/Refraction-and-Lenses/Least-Time-Principle/Least-Time-Principle-Interactive

2. Explain how the time travelled from the life guard to the man relates to be related to refraction. Note you can change the angle of travel and the velocity on land and in water.

3. What would be the fastest path for the life guard?

Conclusion: