1. Find the average focal length, and the % Difference between the average and the theoreticalfocal length of 100 mm.2. Why could you not obtain a focused image for some object distances?3. What would the object distance need to be in order to obtain a magnification of -1?4. For a converging lens of focal length f, where would you place the object to obtain an imageas far from the lens as possible? 5. Purpose: State the purpose of the experiment. Explain exactly what the experimentinvestigates and what you are trying to determine. Be as explicit and thorough as possible.Explain the theory behind the experiment. Explain exactly what you measured and how itwas used to fulfill the purpose of the lab.6. Conclusion: Discuss the percent error, and the uncertainties involved in themeasurements and possible errors which made the experimental results different from thetheoretical results. Suggest possible improvements in the experiment which could reducethese uncertainties.

2. Find the slope of the line of the graph below. Show your work clearly! Distance (m) 100 80 60 40 20 20 2 6 8 Time (s)

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