To obtain a magnified image at distance of distinct vision (DDV) using a simple microscope, the object…
To obtain a magnified image at distance of distinct vision (DDV) using a simple microscope, the object should be placed
between the principal focus and optical centre of the lens.
at the principal focus.
slightly beyond the principal focus.
at the distance of distinct vision.
Solution
A simple microscope (a convex lens) produces a magnified, virtual, and erect image of an object. To obtain a magnified image at the distance of distinct vision (usually 25 cm ), the object must be placed between the lens's principal focus and its optical center. This placement ensures that the rays emerging from the lens appear to come from a larger virtual image located at the DDV.