Physics · Optics
A student uses a convex lens to project an image of a tree onto a wall. If the image is found to be real and smaller than the tree, what can be inferred about the tree's position relative to the lens?
- 1The tree is placed beyond twice the focal length (beyond 2F) of the lens.✓
- 2The tree is at twice the focal length from the lens.
- 3The tree is between the lens and its focal point.
- 4The tree is at the focal point of the lens.
Correct answer
The tree is placed beyond twice the focal length (beyond 2F) of the lens.
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