Section A06 - Week 8.5

Section A06 - Week 8.5 - WEEK 8.5 Dan’s Section – BIEB...

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Unformatted text preview: WEEK 8.5 Dan’s Section – BIEB 166 – Dr. Nieh Wed. 5 – 5:50 PM @ CSB 004 OH: Wed 3 – 4 PM @ York 3010 A Lecture 20: Properties of Light I. Light: Form of electromagnetic energy, as an electromagnetic wave, with oscillating electric and magnetic fields perpendicular to each other. A) As a wave: Can add constructively and destructively i. Refraction – Bending of a light ray as it passes into a medium with different speed Ex) Hawk must account for refraction difference of a fish in the water ii. Diffraction – Bending of light around an object or an edge Objects must be similar in wavelength size to bend around the object iii. Polarization – Filtering of light such that the resultant e-field lines along a single plane B) As a particle: where energy is directly proportionate to frequency i. =c/λ where speed of light in a vacuum (fastest) ~ 3.0 x 10 ʄ 8 m/s ii. Light is slowed down when passing though dense materials Ex) Shimmering diamond II. Electromagnetic radiation: Photons are produced when electrons are accelerated by close approaches to II....
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Section A06 - Week 8.5 - WEEK 8.5 Dan’s Section – BIEB...

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