Question

multiple choice question
in a bright - field microscope, which microscope component is mounted beneath the stage to focus a cone of light on the slide?
coarse adjustment
objective lens
ocular lens
substage condenser

Explanation:

• Coarse adjustment: Moves stage/lenses for rough focus, not light-focusing.
• Objective lens: Mounted above stage, magnifies specimen.
• Ocular lens: Eyepiece, magnifies objective image, top of scope.
• Substage condenser: Located below stage, focuses light cone onto slide.

Answer:

D. Substage condenser