Major Concepts of Physics PHY 102 – Lecture #12 1 2015 Syracuse University Lecture #12 How do the...

Major Concepts of Physics PHY 102 – Lecture #12 12015Syracuse University

Lecture #12 Lecture #12 How do the images form using How do the images form using

mirrors and lenses? mirrors and lenses?

February 25February 25thth 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

Major Concepts of Physics PHY 102 – Lecture #12 22015Syracuse University

1.1.Review – Total Internal Reflection - Review – Total Internal Reflection - Applications Applications

2. The formation of images through 2. The formation of images through reflection and refractionreflection and refraction

3. Mirrors 3. Mirrors

4. Thin Lenses4. Thin Lenses

5. Announcements/Reading assignments5. Announcements/Reading assignments

Lecture objectivesLecture objectives

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Conceptual example 23.3Conceptual example 23.3

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Major Concepts of Physics PHY 102 – Lecture #122015Syracuse University 5

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Learn how to draw rays that Learn how to draw rays that reflect and refractreflect and refract

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Learn how to determine Learn how to determine your anglesyour angles

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Formation of a real image by a camera Formation of a real image by a camera lenslens

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Image of a point source Image of a point source

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

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A convex mirrorA convex mirror

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Location of the focal Location of the focal pointpoint

Major Concepts of Physics PHY 102 – Lecture #122015Syracuse University

Location of a focal point of a convex mirror

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Major Concepts of Physics PHY 102 – Lecture #122015Syracuse University

A convex mirror in Winnipeg

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Reflection of parallel rays to the principal axis of a concave mirror convex mirror

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Concave mirror: an object is located between the focal point and the center of curvature

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Concave mirror: an object is located between the focal point and the mirror surface

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Diverging and converging Diverging and converging lenseslenses

Major Concepts of Physics PHY 102 – Lecture #122015Syracuse University

The angle of deviationThe angle of deviation

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Lens – A parallel ray to the Lens – A parallel ray to the principal axis principal axis

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Diverging/converging rays Diverging/converging rays through a lensthrough a lens

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Diverging and converging lenses

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How does a lens form a real How does a lens form a real image?image?

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Ray diagrams

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Lens equation

This also holds for lens equation.

Major Concepts of Physics PHY 102 – Lecture #12 252015Syracuse University

1.1. ReadingReading: Chapter 23rd

Section 23.6 The formation of images Section 23.7 Plane mirrors Section 23.9 Thin lenses Conceptual examples 23.3, 23.4, 23.6, 23.8

2. Homework. 2. Homework. HW #4 assignments is due this week’s lab. HW#5 will be posted online.

3. This week’s workshop:3. This week’s workshop: Reflection and Formation of Images.

AnnouncementsAnnouncements