Why does a simple microscope provide magnification even though the angular size of the object equals the angular size of the virtual image formed by the lens?
ABecause the lens increases the actual size of the object itself
BBecause the microscope allows the object to be kept much closer to the eye than $25\,\text{cm}$ while still being seen distinctly
CBecause the lens changes white light into monochromatic light
DBecause the image formed by the lens is always real and enlarged
Answer & Solution
Correct answer: B. Because the microscope allows the object to be kept much closer to the eye than $25\,\text{cm}$ while still being seen distinctly
A simple microscope helps because a small object can be placed much closer to the eye than the least distance of distinct vision, yet its virtual image is still seen distinctly. This makes the object subtend a larger angle at the eye than it would without the microscope. The lens does not physically enlarge the object, and the image in a simple microscope is typically virtual, not real.
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