Mirrors Physics Mrs. Coyle.

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The image formed by concave mirror

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Presentation transcript:

Mirrors Physics Mrs. Coyle

Plane Mirror di=do

Plane Mirror http://physics.bu.edu/~duffy/py106/Reflection.html

Type of Image Virtual Equal in Size Erect (Upright)

Spherical (Curved) Mirrors Concave Convex

Concave Mirror(Converging) http://www.shokabo.co.jp/sp_e/optical/labo/lens/lens.htm

Concave Mirror

Converging Mirror http://buphy.bu.edu/~duffy/PY106/22a.GIF

Summary for Concave Mirror When object is: Beyond C At C Between C and F At F Between F and mirror Image is: Between C and F At C Beyond C No image Virtual image

Mirror Equation 1 = 1 + 1 f do di

Magnification M= hi = -di ho do

Sign Convention do + object is in front of the mirror di + real image, in front of the mirror di - virtual image, behind the mirror hi + erect image hi - inverted image f + converging (concave) mirrors f - diverging (convex) mirrors

Convex Mirror (Diverging) http://www.shokabo.co.jp/sp_e/optical/labo/lens/lens.htm

Convex Mirror (Diverging)

Summary for Convex Mirror Always: Virtual, reduced, upright image

Simulation http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true

Problem Find the image distance, height and type for a 5cm object placed 60cm from a concave mirror of focal length of 18cm. Answer: di=25.7cm, hi=-2.14cm, Real, Inverted, Reduced