Which tool would you use to magnify a specific section of a microscope slide during a presentation?

• A. Coarse focus knob
• B. Objective lens
• C. Stage clip
• D. Condenser

Answer: (B)

Verified step by step guidance

1. Understand the function of each tool mentioned: the coarse focus knob is used to bring the specimen into general focus by moving the stage or objective lenses up and down.
2. The stage clip holds the microscope slide securely in place on the stage, preventing movement during observation.
3. The condenser focuses light onto the specimen to improve illumination and contrast but does not magnify the image.
4. The objective lens is the primary optical element responsible for magnifying the specimen; different objective lenses provide different levels of magnification.
5. Therefore, to magnify a specific section of a microscope slide during a presentation, you would use the objective lens, as it directly controls the magnification of the image you see.