# 11 Demo: Print: Supplies:. Concave Review SALT Size of IMAGE (compared to object) Attitude Location Type.

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11 Demo: Print: Supplies:

Concave Review

SALT Size of IMAGE (compared to object) Attitude Location Type

Concave Review

Warmup “Objects in the rearview mirror may appear closer than they are.” 1.What kind of mirror do you suppose is used in a rear-view mirror for he driver and passenger of a vehicle? 2.Why do you suppose they use this type of mirror? 3.Why do objects appear closer?

Images in Spoons Concave side Convex side Describe the Image SALTSALT SALTSALT Complete the diagram below and the “SALT” Table

Convex Mirror

Draw a stick-man to the right of a convex mirror. Use a ray-diagram to depict his image

Convex Mirror Draw a an object of your choice to the right of a convex mirror. Use a ray- diagram to depict his image

Convex Mirrors Now the F (virtual focus) and C are behind the mirror Light rays seem to come from an apparent light source behind the mirror (virtual image)

Uses of Convex Mirrors Security MirrorsSide Mirrors

Rules for Drawing Images 1.A ray parallel to the principal axis is reflected as if it had come through the focus 2.A ray aimed at the centre of curvature is reflected back upon itself 3.A ray aimed at the focus is reflected parallel to the principal axis

Diagram 1

Diagram 2

Diagram 3

Real & Virtual Images Real image = an image that appears in front of the mirror and can be projected onto a screen Virtual image = an image that appears to be behind the mirror and cannot be projected onto a screen

Summary of Types of Images Mirror TypeReal ImageVirtual Image PlaneNeverALWAYS ConvexNeverALWAYS ConcaveIf the object is farther away from the mirror than F If the object is between F and the mirror

Convex Mirrors http://www.edumedia- sciences.com/en/a309-convex-mirrorhttp://www.edumedia- sciences.com/en/a309-convex-mirror

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