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5. When you use a lens in the sunshine as a burning glass, it forms a small bright spot. (a) What kind of lens is

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5. When you use a lens in the sunshine as a burning glass, it forms a small bright spot. (a) What kind of lens is this? (b) Is the lens then forming an image and if so of what? (c) What would the bright spot look like during an annular solar eclipse? (4 pts)

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