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Answer ALL questions. Please fully define your equations and provide complete explanations and I will give...

Answer ALL questions. Please fully define your equations and provide complete explanations and I will give you a thumbs up and a good comment! Thank you!

1. Explain what the “focal length” of a lens is.

2. What is the difference between converging and diverging lenses?

3. What is the relationship between the object distance and the image distance for a lens?

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