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Welcome to our Physics lesson on Image Formation in Converging Lenses, this is the third lesson of our suite of physics lessons covering the topic of Lenses. Equation of Lenses. Image Formation of Lenses, you can find links to the other lessons within this tutorial and access additional physics learning resources below this lesson.
Image Formation in Converging Lenses
Converging lenses are very similar in concept to concave mirrors. Therefore, we have again six possible cases of image formation in converging lenses depending to the position of object in respect to the lens.
- The object is beyond the centre of curvature. In this case, the image is formed at the other side of lens, between focus and centre of curvature; it is diminished and inverted. The image is also real because it is produced from the two reflected rays and not from their extensions.
- The object is at centre of curvature. In this case, the image will form at the other centre of curvature; it has the same size as the object and is inverted. The image is real because it is produced from the two reflected rays and not from their extensions.
- The object is between centre of curvature and focus. The image is formed at the other side of lens, beyond the other centre of curvature. The image is magnified and inverted; it is real because is produced from the two reflected rays and not from their extensions.
- The object is at focus. In this case, there is no image as the refracted rays are parallel.
- The object is close to the lens than focus. In this case, the reflected rays diverge and therefore, we take their extension to build up the image. As a result, the image is at the same side to the object; it is enlarged, erect and virtual, as it is obtained by considering the rays' extensions.
- The object is at infinity. In this case, the image has no dimensions. It is a bright point at focus as all parallel rays coming from the object converge at focus.
You have reached the end of Physics lesson 12.9.3 Image Formation in Converging Lenses. There are 8 lessons in this physics tutorial covering Lenses. Equation of Lenses. Image Formation of Lenses, you can access all the lessons from this tutorial below.
More Lenses. Equation of Lenses. Image Formation of Lenses Lessons and Learning Resources
Optics Learning MaterialTutorial ID | Physics Tutorial Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions |
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12.9 | Lenses. Equation of Lenses. Image Formation of Lenses | | | | |
Lesson ID | Physics Lesson Title | Lesson | Video Lesson |
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12.9.1 | What Are Lenses? Types of Lenses | | |
12.9.2 | Special Rays in Lenses | | |
12.9.3 | Image Formation in Converging Lenses | | |
12.9.4 | Image Formation in Diverging Lenses | | |
12.9.5 | Equation of Lenses | | |
12.9.6 | Magnification Produced by Lenses | | |
12.9.7 | Aberration in Lenses | | |
12.9.8 | Combined Systems of Lenses and Curved Mirrors | | |
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