Wavefronts and The Huygens Principle (Grade 11 NSC Matric Physical Sciences): Flashcards
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Wavefront definition
Wavefront definition
Imaginary line connecting points in phase on a wave
Point source definition
Point source definition
Wave generator so small it's treated as single point
Isotropically meaning
Isotropically meaning
Waves travel equally in all directions
In phase meaning
In phase meaning
At exactly same stage of wave cycle
Developer of Huygens principle
Developer of Huygens principle
Christiaan Huygens
Huygens principle definition
Huygens principle definition
Each wavefront point acts as source of spherical secondary waves
Secondary wavelets (Huygens)
Secondary wavelets (Huygens)
Circular waves from each point on wavefront
Finding new wavefront via Huygens
Finding new wavefront via Huygens
Draw tangent to all secondary wavelets
Diffraction (Huygens explains)
Diffraction (Huygens explains)
Waves bending around corners
Refraction (Huygens explains)
Refraction (Huygens explains)
Waves change speed & direction in different materials