The mechanical stage lower knob causes the stage to moveMultiple Choiceup and down. right and left. All of the answer choices are correct. back and forth. The mechanical stage upper knob causes the...

The mechanical stage lower knob causes the stage to moveMultiple Choiceup and down.

• right and left.


• All of the answer choices are correct.


• back and forth.

The mechanical stage upper knob causes the stage to move

Multiple Choice

• back and forth.


• up and down.


• All of the answer choices are correct.


• right and left.

The fine adjustment knob on the microscope

Multiple Choice

• All of the answer choices are correct.


• fine-tunes the focus.


• locates the specimen.


• locates the focus plane.

The coarse adjustment knob on the microscope

Multiple Choice

• All of the answer choices are correct.


• locates the focus plane.


• fine-tunes the focus.


• locates the specimen.

You have successfully focused on an object with the 10x and 40x objective lenses. You have rotated the 100x objective lens into position but are unable to obtain a sharp image by rotating the fine focus adjustment knob. Which of the following is most likely to correct this problem?

Multiple Choice

• Decrease the light intensity.


• Use the coarse focus adjustment knob to sharpen the image.


• Add a drop of immersion oil before rotating the 100x lens into position.

Indicate the correct order of steps as you bring an object into focus under high power.

Rank the options below.

• Place slide on stage and secure with stage clips.


• Rotate high power lens into position.


• Focus specimen on scanning objective using coarse focus adjustment


• Turn on the light and center the specimen over the light source


• Readjust fine focus under high power to produce the sharpest image.


•  Rotate to low power objective, then use fine focus to sharpen the image

A change in what component of microscopy influences the apparent size of the objects being viewed?

Multiple Choice

• magnification


• light intensity


• contrast

Arrange the following steps of applying immersion oil in the correct sequence.

Rank the options below.

• Rotate the 100x lens over the microscope slide, and use the fine focus adjustment knob to sharpen the image.


• Focus on the specimen using the 40x objective lens.


• Apply a drop of immersion oil directly onto area of the slide you were viewing.


• Turn the objectives to half way between the 40x lens and the 100x lens.

Which objective lens provides the highest total magnification?

Multiple Choice

• oil immersion


• high power


• scan


• low power