So we took some lenses, looked at a distance source of light (outside), and measured the focal length for our lab. We will continue this tomorrow; please fill out the values of d_o based on the focal length of your lens.
Thursday, September 29, 2011
Lens Lab: Real Images - Part 1
Today we are starting a lab, but we won't get all that far. First, some bellwork, during which we found out that the place where an image forms behind a convex lens is the focal point IF the light coming into the lens is parallel. The light will be parallel if the source is very far away.
So we took some lenses, looked at a distance source of light (outside), and measured the focal length for our lab. We will continue this tomorrow; please fill out the values of d_o based on the focal length of your lens.
So we took some lenses, looked at a distance source of light (outside), and measured the focal length for our lab. We will continue this tomorrow; please fill out the values of d_o based on the focal length of your lens.
Lens Lab: Real Images
Day two of the candle lab! First some bellwork:
Then we turned off the lights, lit some candles, and took some data! Your lab sheet is due tomorrow.
Then we turned off the lights, lit some candles, and took some data! Your lab sheet is due tomorrow.
Monday, September 26, 2011
Lens Ray Diagrams
Today and tomorrow we are learning to draw lens ray diagrams. Honors, you started yesterday and finished today.
Homework: Concept-Development 30-2
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