MCQ on Compound Microscope with Answers for Students and Exams

A compound microscope is an optical instrument that uses two sets of lenses, the objective and the eyepiece, to magnify small specimens for detailed observation. It provides higher magnification and resolution compared to a simple microscope, making it useful in biology, medicine, and research. The objective lens forms an enlarged real image of the specimen, which is further magnified by the eyepiece to produce a virtual image. It typically uses transmitted light to illuminate thin, transparent samples placed on glass slides. This is an MCQ on Compound Microscope withAnswers.

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Learn more: Notes on Working Principles of Phase Contrast Microscopy

1. 
What is the primary function of the condenser lens in a compound microscope?

2. 
Which component of a compound microscope controls the amount of light reaching the specimen?

3. 
In a compound microscope, what does the term "numerical aperture" (NA) refer to?

4. 
What is the primary advantage of using an oil-immersion objective lens?

5. 
How does the magnification of the compound microscope eyepiece typically compare to that of the objective lenses?

6. 
What is the purpose of the coarse focus knob in a compound microscope?

7. 
In a compound microscope, what does the term "working distance" refer to?

8. 
Which part of the compound microscope is responsible for changing objectives?

9. 
What is the role of the stage in a compound microscope?

10. 
How is contrast typically enhanced in a compound microscope?

11. 
What type of illumination is most commonly used in modern compound microscopes?

12. 
What is the significance of the "field of view" in a compound microscope?

13. 
Why is it important to use the fine focus knob after the coarse focus knob?

14. 
What is the purpose of using a mechanical stage in a compound microscope?

15. 
In which type of microscopy is the use of phase contrast microscopy most beneficial?

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