OPTICS 07 - Concave Mirrors
 

OPENING QUESTIONS: All actual/physical measurements made *inside* the "cave" are....?

Now please go back and look at your work from yesterday and make sure to include an accurate drawing to represent each problem.

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LEARNING TARGET:

FORMULAE OBJECTUS:

mirror equation: 1/i + 1/o = 1/f (where any negative values occur "outside the cave")

magnification:

M = - i/o (scale version)

hi/ho = -i/o (ratio version)

(where negative values indicate an inverted image, values more than one indicate a magnified image, decimal values less than one indicate a reduced image)

WORDS O' THE DAY:

    • Object Length ("Distance from the mirror to the object")
    • Image Length ("Distance from the mirror to the image")
    • Center (Center of the circle!)
    • Concave (edge bends inward, like a cave)
    • Focus ("Where light waves converge")
    • Focal Length ("Distance from the mirror to the focal point")
    • Real image ("Light rays converge")
    • Virtual image ("Backwards convergence")

WORK O' THE DAY:

Today we'll be working to tie all the work we've done so far together in a nice pretty bow

So...

You'll need to create a nice, neat, annotated solution of your problem.

Oh and by the by, to K.I.S.S. I'm going to say let's make the center point to be 2 times the focal length.

Then please create a drawing TO SCALE that accurately depicts the height of your object and image as well the correct placement of the image, object, focus and center.

Now please do a ray diagram in separate colors (although I recommend tracing your rays very lightly in pencil first, to avoid *DOH* type mistakes)

In matching colors, please quoth the mirror-light-ray-rule that matches that ray.

HERE'S MY EXAMPLE FOR PROBLEM #1:

When (if?) you're done with that one, please let's all do #4

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Physics Classroom Problem Set

  1. Person designated by the color red: Problem #2
  2. Person designated by the color orange: Problem #3
  3. Person designated by the color blue: Problem #5
  4. Person designated by the color green: Problem #6

When (if?) you're done with that one, please let's all do #4

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