Real images are formed when light converge while virtual images are formed by light appearing to have converged.
a) If light rays actually converge to the image point, the image is said to be a (virtual/real?) Image and the image distance is positive. b) If the rays diverge, they should be extended backward with dashed lines to the common image point where they appear to meet. The image is said to be a (virtual/real?) image.
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