Lecture%2036%202220%20Spring%202009

Lecture%2036%202220%20Spring%202009 - Reminders and...

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1 Reminders and Announcements • HW 21 is due Friday • Exam 3 is next Monday (Chs. 31-35) Help Room Hours (Physics 117) • Help Room Hours (Physics 117): – M 4-8 pm, T 3-6:30, W 3-6:30, R 4:30-8, F 2-6 Chapter 36 Image Formation Images Formed by Flat Mirrors • Simplest possible mirror • Light rays leave the source and are reflected from the mirror • Point I is called the image of the object at point O Notation for Mirrors and Lenses • The object distance is the distance from the object to the mirror or lens – Denoted by p The image distanc is the distance from the image • The image distance is the distance from the image to the mirror or lens – Denoted by q • The lateral magnification of the mirror or lens is the ratio of the image height to the object height – Denoted by M Images • Images are always located by extending diverging rays back to a point at which they intersect • Images are located either at a point from which the rays of light actually diverge (real image) or at a point from which they appear to diverge (virtual image) The image formed by a flat mirror is 50% 50% 1. Real 2. Virtual 12 0 of 126
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2 Images Formed by Flat Mirrors • One ray starts at point P , travels to Q and reflects
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This document was uploaded on 09/30/2009.

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Lecture%2036%202220%20Spring%202009 - Reminders and...

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