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Slide 1

What are some examples of curved mirrors?

Slide 2

A spherical mirror has the shape of part of a sphere’s surface.

Concave Spherical Mirror (Converging Mirror): A spherical mirror with light reflecting from its silvered, concave surface

Concave mirrors are used whenever a magnified image of an object is needed

Slide 3

Terms you need to know

Slide 4

Concave Spherical Mirrors (p.531)

A spherical mirror is represented as a shell of a sphere

Slide 5

Concave Mirror (p.531)

Slide 6

To use the mirror equation, you must use the correct signs.

Object and image distances are positive if they form on the front side of the mirror

Object and image distances are negative if they form on the back side of the mirror

Slide 7

Sample Problem (p.536 #2)

A concave shaving mirror has a focal length of 33 cm. Calculate the image position of a cologne bottle placed in front of the mirror at a distance of 93 cm.

Slide 8

Solve the problem

p = .93 m

f = .33 m

q=?

Slide 9

Magnification Equation

Slide 10

A concave shaving mirror has a focal length of 33 cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted or upright?

Slide 11

Sign Conventions for Magnification

Slide 12

Find the magnification

The magnification is negative, therefore the image is real and inverted.

Slide 13

A ray diagram is a drawing that uses geometry to locate an image formed by a mirror.

There are different rules for drawing ray diagrams depending on the type of mirror you have.

Slide 14

- Curved Mirrors
- Concave Spherical Mirrors
- The Mirror Equation
- Sample Problem (p.536 #2)
- Ray Diagrams
- Ray diagrams for convex mirrors
- Drawing the reference rays
- Convex Spherical Image Formation

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