As an object is slowly brought from infinity to the focus of a convex lens, the image travels from the focus to infinity.' Show this with the help of diagrams with five different positions of the object.
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Explanation:
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When an object is brought from infinity to the focus of a convex lens, the image of the object will travel from the focus to infinity. This can be shown through a series of diagrams, each depicting the object in different positions relative to the focus of the lens.
In the first diagram, the object is located at infinity, which is beyond the focal length of the lens. In this case, the image of the object is also located at infinity, and it is inverted. This means that the image is a virtual image, since it is located at a distance which is greater than the focal length of the lens.
In the second diagram, the object has been moved closer to the focus of the lens, but it is still beyond the focal length. In this case, the image is located at the focus of the lens, and it is upright. This means that the image is a virtual image, since it is located at a distance which is greater than the focal length of the lens.
In the third diagram, the object is located at the focus of the lens. In this case, the image is located at infinity, and it is inverted. This means that the image is a real image, since it is located at a distance which is equal to the focal length of the lens.
In the fourth diagram, the object has been moved closer to the lens, but it is still within the focal length. In this case, the image is located beyond the focal length, and it is inverted. This means that the image is a real image, since it is located at a distance which is greater than the focal length of the lens.
In the fifth diagram, the object is located within the focal length of the lens. In this case, the image is located beyond the focal length, and it is upright. This means that the image is a real image, since it is located at a distance which is greater than the focal length of the lens.
Therefore, when an object is slowly brought from infinity to the focus of a convex lens, the image travels from the focus to infinity. This can be illustrated through five diagrams, each depicting the object and its corresponding image in a different position relative to the focus of the lens.
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