Real image and virtual image formed by converging lens?

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fedederer129

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I encounter these two new conceptions, when i study the chapter about Converging lens. Can you please tell me what are the characteristics of the real and virtual image? thanks
 
Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged. Real images occur when objects are placed outside the focal length of a converging lens or outside the focal length of a converging mirror. A real image is illustrated below. Ray tracing gives the position of the images by drawing one ray perpendicular to the lens, which must pass through the focal point, and a second ray that passes through the center of the lens, which is not bent by the lens. The intersection of the two rays gives the position of the image. (A third ray could be drawn which passes through the focal point on the left side of the lens; after passing through the lens, it would travel parallel to the axis, and would intersect the other two rays at the point where those rays already intersect. Note that the real image is inverted. (The image happens to be larger than the object. That happens because the object is between f and 2f away from the lens; if the lens were farther away than 2f, the image would be closer to the lens than 2f, and would be smaller than the object.)
 
Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged. Real images occur when objects are placed outside the focal length of a converging lens or outside the focal length of a converging mirror. A real image is illustrated below. Ray tracing gives the position of the images by drawing one ray perpendicular to the lens, which must pass through the focal point, and a second ray that passes through the center of the lens, which is not bent by the lens. The intersection of the two rays gives the position of the image. (A third ray could be drawn which passes through the focal point on the left side of the lens; after passing through the lens, it would travel parallel to the axis, and would intersect the other two rays at the point where those rays already intersect. Note that the real image is inverted. (The image happens to be larger than the object. That happens because the object is between f and 2f away from the lens; if the lens were farther away than 2f, the image would be closer to the lens than 2f, and would be smaller than the object.)
 
Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged. Real images occur when objects are placed outside the focal length of a converging lens or outside the focal length of a converging mirror. A real image is illustrated below. Ray tracing gives the position of the images by drawing one ray perpendicular to the lens, which must pass through the focal point, and a second ray that passes through the center of the lens, which is not bent by the lens. The intersection of the two rays gives the position of the image. (A third ray could be drawn which passes through the focal point on the left side of the lens; after passing through the lens, it would travel parallel to the axis, and would intersect the other two rays at the point where those rays already intersect. Note that the real image is inverted. (The image happens to be larger than the object. That happens because the object is between f and 2f away from the lens; if the lens were farther away than 2f, the image would be closer to the lens than 2f, and would be smaller than the object.)
 
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