Major Concepts of Physics PHY 102 – Lecture #11 12015Syracuse University

Lecture #11 Lecture #11 Refraction, Dispersion, Refraction, Dispersion,

Total Internal Reflection Total Internal Reflection

February 23rd February 23rd Spring 2015Spring 2015

Prof. Liviu MovileanuProf. Liviu Movileanulmovilea@syr.edu

Room 211, Physics Bldg., 443-8078Room 211, Physics Bldg., 443-8078

Major Concepts of Physics Major Concepts of Physics PHY102PHY102

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1.1.The refraction of light: Snell’s lawThe refraction of light: Snell’s law

2. Conceptual examples 2. Conceptual examples

3. Dispersion/Rainbows 3. Dispersion/Rainbows

4. Total internal 4. Total internal reflection/Demos/Applications reflection/Demos/Applications

5. Announcements/Reading assignments5. Announcements/Reading assignments

Lecture objectivesLecture objectives

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Wavefronts and rays at a glass-air Wavefronts and rays at a glass-air boundaryboundary

            

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Laws of refractionLaws of refraction

 

2. The incident ray, the transmitted ray, and the normal all lie in the same plane – the plane of incidence.

3. The incident and transmitted rays are on opposite sides of the normal.

1.

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All rays lie in the same All rays lie in the same plane plane

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Indices of refraction of various Indices of refraction of various materials materials

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Conceptual example 23.2Conceptual example 23.2

            

Major Concepts of Physics PHY 102 – Lecture #112015Syracuse University

Conceptual example 23.2Conceptual example 23.2

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Major Concepts of Physics PHY 102 – Lecture #112015Syracuse University

Physics at homePhysics at home

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Mirage seen in the desert in Mirage seen in the desert in Namibia Namibia

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Superior mirage seen in Superior mirage seen in Finland Finland

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Dispersion of white light by a prism

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How does a rainbow work?How does a rainbow work?

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Total Internal Reflection (TIR)

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Total Internal Reflection in Prisms

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TIR applications – Fiber Optics

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Conceptual example 23.3Conceptual example 23.3

            

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Conceptual example 23.3Conceptual example 23.3

            

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TIR Applications: Endoscope & TIR Applications: Endoscope & ArthroscopeArthroscope

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1.1. Reading AssignmentReading Assignment: Chapter 23rd Section 23.3 The refraction of light Section 23.4 Total internal reflection Conceptual examples 23.2 – The refraction of lightConceptual example 23.3 – Total internal reflection

2. Homework. 2. Homework. HW #4 assignment is due on this week’s lab (Please come to see me, if you have questions).

3. This week’s workshop:3. This week’s workshop: Reflection, Image Formation on Plane and Concave Mirrors

AnnouncementsAnnouncements