Concave mirrors

Concave Mirrors The laws remain the same

The Sky Mirror What do you notice about the mirror image you see?

Properties of Concave Mirrors ,[object Object],[object Object],[object Object]

How do we draw ray diagrams for Concave mirrors? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

You apply the SAME rules of reflection ,[object Object],[object Object]

Starting with the normal ,[object Object],[object Object],[object Object],The centre horizontal line is the PRINCIPLE AXIS

The Principle Axis ,[object Object],[object Object],[object Object]

Rays Parallel to the Center of Curvature ,[object Object],[object Object],[object Object],[object Object]

So how do we Draw the Diagram? ,[object Object],[object Object],[object Object],[object Object]

How to draw Objects between the Focal Point and the Mirror

What do you notice about the image? RIGHT-SIDE UP and BEHIND the mirror

What if the Object is between the Focal Point and the Center of Curvature?

What do you notice about the image? UPSIDE-DOWN and in front of the center of curvature

What about when the object is in front of (or beyond) the Center of Curvature

What do you notice about the image? It’s UPSIDE DOWN and SMALLER

You can also Predict what your image looks like using equations!

Lets try a Practice Problem PG 426 ,[object Object],[object Object],[object Object]

More Practice ,[object Object],[object Object],[object Object],[object Object]

Concave mirrors

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