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Real Object, Images formed by a single converging or diverging lens |
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| Mar31-10, 03:28 PM | #1 |
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Real Object, Images formed by a single converging or diverging lens
1. The problem statement, all variables and given/known data
Starting with a real object, which of the following statements are TRUE about the image formed by a single lens? (Choose ALL correct answers, e.g. B, AC, CDF.) A) For a converging lens an object has to be placed between the focal length and the lens in order to form a virtual image. B) A diverging lens can produce a real, inverted, reduced image. C) A converging lens can produce a virtual, upright, enlarged image. D) A converging lens cannot produce a real, inverted reduced image. E) A converging lens can never produce a virtual, upright, reduced image. F) A diverging lens always produces a virtual, upright, reduced image. 2. Relevant equations laws of rays passing through a lens 3. The attempt at a solution I keep getting this wrong, and I'm not sure which one I've mixed up. A) True - I believe this is the only way to get a virtual image for a converging lens B) False - Diverging lenses CANT produce real images C) True - if the object is between the focal point and the lens D) False - this is possible if the object is placed, say, 2 times the focal length away from the lens E) True - this is not possible because any virtual images are enlarged ??? F) False - diverging lenses can produce inverted images as well can someone help me figure out where I'm wrong? These are the answers I've tried: TFTFTF TTTFTF TFTFTT TFTFFF |
| Mar31-10, 03:36 PM | #2 |
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I believe the last one is true. It seems like any raytrace on a diverging lens forms a upright reduced and virtual image.
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| Mar31-10, 03:42 PM | #3 |
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I guess my prof said that a diverging lens could possibly form an inverted image, although I'm not sure how.
I also already tried that combination: TFTFTT So I must either have another one wrong or something.... not sure... |
| Mar31-10, 04:00 PM | #4 |
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Real Object, Images formed by a single converging or diverging lens |
| Mar31-10, 04:16 PM | #5 |
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I didn't know that all virtual images are upright, that is good to know!
However, if Part F is true, I still have something else wrong, as I tried: TFTFTT So I'm not sure what other one I have wrong... |
| Mar31-10, 04:26 PM | #6 |
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Yeah I'm not sure what else could be different TFTFTT seems right to me.
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