FREE AND STUDY GAMES ABOUT A P LAB I WOODS

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EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -24 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: T/F Completely unwind the electrical cord before plugging it in, if there is a built in light source.

Answer:

True

Question 2: lens attached to nosepiece

Answer:

objective lenses Question 3: a flat, horizontal shelf under the objective lenses that supports the microscope slide.

Answer:

stage

Question 4: narrows beam of light

Answer:

condenser

Question 5: a series of flat metal plates at the base of the condenser to regulate the amount of light passing through the condenser.

Answer:

iris diaphragm

Question 6: How is magnification controlled in the microscope?

Answer:

by the objective lens

Question 7: hole in stage

Answer:

aperture Question 8: T/F Carry the microscope with two hands, one on the arm and the other supporting the base.

Answer:

True

Question 9: special paper for cleaning

Answer:

lens paper

Question 10: has knobs to move slide

Answer:

mechanical stage

Question 11: holds ocular lens

Answer:

body tubes

Question 12: controls the brightness of the light

Answer:

light control knob

Question 13: eyepiece

Answer:

ocular lens

Question 14: used only at low power

Answer:

coarse adjustment knob

Question 15: Why should you always view a slide at lower power first?

Answer:

Because it is easier to locate the specimen at this power.

Question 16: supportive frame

Answer:

arm Question 17: T/F When you are finished using it, store the microscope with the lower power objective lens in position and the stage cabinet or cover it with a dust cover.

Answer:

True Question 18: T/F To clean the lenses, use only the lens-cleaning fluid and lens paper provided.

Answer:

True Question 19: Describe when to use the coarse adjustment knob and when to use the fine adjustment knob.

Answer:

Use the course adjustment knob to bring the speciman into focus and then use the fine adjustment knob to focus on the detail of the specimen.

Question 20: used for precise focusing

Answer:

fine adjustment knob

Question 21: a small drop of immersion oil is used on the slide to eliminate the air between the lens and the slide to improve resolution

Answer:

oil-immersion objective lens Question 22: Which parts of a microscope are used to regulate the intensity and contrast of light? What is the function of these parts?

Answer:

the condenser and the iris diaphragm condenser:narrows the beam of light iris diaphragm: is a series of flat metal plates at the base of the condenser to regulate the amount of light passing through the condenser.

Question 23: lower support of microscope

Answer:

base Question 24: provides the light that passes through the specimen, through the lenses, and finally into your eyes.

Answer:

lamp