Which one of the following is the correct sequence of passage of light in a compound microscope?
[amp_mcq option1=”Condenser—Objective lens—Eyepiece—Body tube” option2=”Objective lens—Condenser—Body tube—Eyepiece” option3=”Condenser—Objective lens—Body tube—Eyepiece” option4=”Eyepiece—Objective lens—Body tube—Mirror” correct=”option3″]
This question was previously asked in
UPSC CDS-1 – 2019
The correct answer is C. In a compound microscope, light typically passes through the following sequence of components: The light source (often directed by a mirror or built-in lamp) illuminates the specimen, usually passing through a condenser which focuses the light onto the specimen. The light then passes through the specimen, enters the objective lens (which forms a magnified real image), travels up the body tube, and finally passes through the eyepiece (which magnifies the real image to form a virtual image viewed by the observer’s eye).
The correct sequence for light passage in a compound microscope is typically Condenser -> Specimen -> Objective lens -> Body tube -> Eyepiece.