Which one of the sets of observations is not correct and why?
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Solution and Explanation
- Observation (2) shows an image distance of +20 cm for an object distance of -60 cm. This is not correct because the image formed by a convex lens should be at a larger distance when the object is placed farther away.
The correct relationship should show the image moving towards the focal point as the object distance decreases.
Thus, observation (2) seems to be incorrect.
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