AP 2: Optics

Optics Lessons / Tutorials: Click here for Ms. Twu's Notes for spherical mirrors and thin lenses
Optics: page 1 (Optics 1 to 5: EM spectrum, reflection, refraction, dispersion, rainbow)
Optics: page 2 (Optics 6 to 10: Refraction, critical angle, total internal reflection)
Optics: page 3 (Optics 11 to 16: Concave and convex mirrors) 
Optics: page 4 (Optics 17 to 24: Converging and diverging lenses, multiple-choice questions)


    • AP Physics 2: Optics 1: Electromagnetic Wave Spectrum: 

    • AP Physics 2: Optics 2: Ray Model, Geometric Optics,and Specular & Diffuse Reflection

    • AP Physics 2: Optics 3: Plane Mirror Image and Depth Perception

    • AP Physics 2: Optics 4: Index of Refraction and Law of Refraction - Snell’s Law

      Index of Refraction: Disappearing Glass and Disappearing Gel, 2010 https://www.youtube.com/watch?v=qH1S83Bkttw  

      The vegetable oil (with a little bit of baby oil) has the same index of refraction as Pyrex glass (n = 1.4744), so light can go from oil to Pyrex glass and from Pyrex glass to oil without the kind of bending normally caused by refraction. That’s why Pyrex glass can “disappear” in the oil.
      The “Jello” trick is kind of like the effect we would get when we wet frosted glass. Flat smooth glass is clear and see-through. Frosted glass has an uneven surface causing light to bend in all kinds of directions and therefore hard for us to see what’s on the other side of the glass. When frosted glass gets wet, its surface gets smooth, therefore allowing us to see the other side. Because water does not have the same index of refraction as glass, so the effect is not as clear as the demo in this video. The “Jello” in this demo video has the same index of refraction as water, so the “Jello” can “disappear” in water.


    • AP Physics 2: Optics 5: Dispersion Prism and Rainbow

      The Scientific Explanation of Rainbows Part 1 (Beginning to 2:40: the wrong explanation by Aristotle, 2:40 to 4:18: general properties of rainbow, 4:18 to end: explanation of rainbows.) http://www.youtube.com/watch?feature=player_embedded&v=r_hFjFM91C4

      The Scientific Explanation of Rainbows Part 2 http://www.youtube.com/watch?v=AZsuZL89Tcs

Optics Lessons / Tutorials: Click here for Ms. Twu's Notes for spherical mirrors and thin lenses
Optics: page 1 (Optics 1 to 5: EM spectrum, reflection, refraction, dispersion, rainbow)
Optics: page 2 (Optics 6 to 10: Refraction, critical angle, total internal reflection)
Optics: page 3 (Optics 11 to 16: Concave and convex mirrors) 
Optics: page 4 (Optics 17 to 24: Converging and diverging lenses, multiple-choice questions)

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Yau-Jong Twu,
Jun 10, 2015, 6:35 AM
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Yau-Jong Twu,
Jul 17, 2014, 2:25 PM
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Yau-Jong Twu,
Dec 20, 2015, 7:30 PM
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Yau-Jong Twu,
Apr 1, 2016, 12:39 PM
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