Question

the \l\ marks the _______

light control
fine adjustment knob
coarse adjustment knob
substage light

Explanation:

Identify the target label

The question asks to identify the microscope part marked by the letter "l" (lowercase L).

Analyze the diagram labels

Let's trace the lines on the right side of the microscope diagram:

• i points to the ocular lens (eyepiece).
• j points to the arm of the microscope.
• k points to the larger, outer knob, which is the coarse adjustment knob.
• l points to the smaller, inner knob nested inside the coarse knob, which is the fine adjustment knob.

Apply mastered concepts

Using our understanding of Microscopic Identification and microscope anatomy, we distinguish between the two focusing knobs:

• The larger knob (k) moves the stage rapidly for initial focusing.
• The smaller knob (l) allows for precise, sharp focusing under higher magnifications.

Match with options

The label "l" points directly to the inner, smaller knob, which is the fine adjustment knob.

Answer:

• light control
• fine adjustment knob (Correct answer)
• coarse adjustment knob
• substage light