Final answer:
A non-ideal positioning of the image receptor in a microscope can lead to a blurred image, and depending on the lens, the resulting image can vary in terms of being real or virtual, and upright or inverted.
Step-by-step explanation:
If the image receptor positioning is not ideal, the resulting image will likely become blurred. Correct positioning ensures that the image is sharp and the details are clear. If the receptor is misplaced, it could lead to light rays not converging or diverging properly, resulting in a loss of image clarity.
When discussing magnification, an ideal position in a microscope setup will usually result in a magnified image. Depending on the lens setup of the microscope, the image can be virtual or real, and additionally, it can be upright or inverted. For instance, a microscope typically produces a virtual, inverted, and magnified image. Moreover, when considering a lens such as a concave lens used for correcting nearsightedness, the image is virtual, upright, and smaller than the object (magnification is less than one), and appears closer to the lens than it actually is.