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2 cards from this section. Quick, good the night before a test.
What is a wavefront?
Think about the surface shared by waves at the same moment.
Define Huygens' Principle.
Consider every point on the front emitting ripples.
What does Huygens' Principle relate to in wave optics?
Focus on the propagation aspect of waves.
True or False: A wavefront is always planar.
Consider different sources leading to various shapes of wavefronts.
A light wave front is striking a boundary between air and water at a specific angle. Using Huygens' Principle, derive the new wavefront shape and calculate how light bends in the new medium.
Use the relationship between the angles in the two media.
Illustrate a situation where Huygens' Principle explains the phenomenon of diffraction around a barrier. Apply your understanding to real-life scenarios.
Focus on the effect of narrowing paths on wave propagation.
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