To determine the focal length of a lens, you place the
Chapter 34, Problem 34.101(choose chapter or problem)
To determine the focal length of a lens, you place the lens in front of a small lightbulb and then adjust a viewing screen to get a sharply focused image. Varying the lens position produces the following data: Bulb to lens (cm) Lens to screen (cm) 20 61 22 47 24 39 26 37 28 32 Use the best-fit line of an appropriate graph to determine the focal length of the lens
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