Consider a lens with a focal length of +20 cm. An object is 30 cm in front of it.
1. Determine the following:
- type of lens
- location of image
- magnification of image
- type of image (real or virtual)
- whether image is right-side up or upside down
2. What would be the effect of covering up half of the lens?
3. Where could you place the object such that you get NO image?
4. Where could you place the object such that you get a larger image?
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