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Question
Draw ray diagrams showing the image formation by a convex lens when an object is placed
- between optical centre and focus of the lens
- between focus and twice the focal length of the lens
- at twice the focal length of the lens
- at infinity
- at the focus of the lens
Solution
The ray diagrams showing the image formation by a convex lens when an object is placed,
- between optical centre and focus of the lens,
- between focus and twice the focal length of the lens,
- at twice the focal length of the lens,
- at infinity,
- at the focus of the lens,
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| Position of Object | Position of Image | Nature of Image |
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| Beyond 2F1 | (b) ______ | (c) ______ |
| At 2F1 | (d) ______ | Real, inverted, same size (as object) image |
| Between F1 and 2F1 | Beyond 2F2 | (e) ______ |
| At focus F1 | (f) ______ | Real, inverted and highly enlarged image |
