# 3 - Images Formed by Refraction generic case Rays originate...

This preview shows pages 1–6. Sign up to view the full content.

1 Geometrical Optics 3 Images Formed by Refraction: Lenses Images Formed by Refraction: generic case Rays originate from the object point, O, refract at the boundary and go to image point, I Real images are rmed on the side formed on the side opposite from the object 6 Cases of Figure 4: rays shown are schematic

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 6 Cases of Figure 4: rays shown are schematic 6 Cases of Figure 4: rays shown are schematic Spherical Refracting Surfaces Spherical Refracting Surfaces
3 Spherical Refracting Surface Formula using geometry again (see 115 PSE text), we can derive the relationship between image and object pg j distances spherical refracting surface formula 12 2 1 ' nn s r  as before, there are sign conventions to be used with this equation ss Sign Conventions for Spherical Refracting Surfaces *** Magnification for Spherical Refracting Surface 1 2 '' hn s m s  Clicker: Which of these actions will move the image point P´ further from the boundary? A. Decrease the radius of curvature R . B. Increase the index of refraction n . C. Increase the radius of curvature . D. Increase the object distance s .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
4 Clicker: Which of these actions will move the image point P´ further from the boundary? 1. Decrease the radius of curvature R . 1234 0% 0% 0% 0% 0 of 5 2. Increase the index of refraction n . 3. Increase the radius of curvature . 4. Increase the object distance s . 20 Ex: A glass sphere has radius 25 cm, with n = 1.5. An bubble is 15 cm below the surface. How far below the glass surface does the bubble appear to be? Ex: A glass sphere has radius 25 cm, with n = 1.5. An bubble is 15 cm below the surface. How far below the glass surface does the bubble appear to be? Ex: A fish is in a spherical bowl of radius 15 cm. A cat’s nose is 10 cm from the bowl. Where is the image of the cat’s nose, and what is its magnification? (ignore the glass of the bowl) n water = 1.33
5 Ex: A fish is in a spherical bowl of radius 15 cm. A cat’s nose is 10 cm from the bowl. Where is the image of the cat’s nose, and what is its magnification? (ignore the glass of the bowl) n water = 1.33 Clicker: A fish is at P. An Observer O sees the fish at 1. a greater depth than it really is 2.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/22/2011 for the course MAC AECH111 taught by Professor Cheresres during the Spring '11 term at McGill.

### Page1 / 14

3 - Images Formed by Refraction generic case Rays originate...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online