When an object is placed 10cm in front of lens A, the image is real, inverted, magnified and formed at a great distance. When the same object is placed 10cm in front of lens B, the image formed is real, inverted and same size as the object:
- What is the focal length of lens A?
- What is the focal length of lens B?
- What is the nature of lens A?
- What is the nature of lens B?
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- The focal length of lens A is 10cm as only a converging lens forms a real, inverted, magnified image at great distance when object is placed at the focus of the lens.
- The focal length of lens B is 5cm as only a converging lens forms a real, inverted and same size image of object when the object is placed at 2F position of the lens.
- Lens A is a converging (convex) lens as only a converging lens forms a real image.
- Lens B is a converging (convex) lens as only a converging lens forms a real image.
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