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Name Student ID BIOL 1406 SECTION LAB 7: MICROSCOPE Pre-Lab Questions: 1. Which objective should always be used first when focusing a microscope? 2. Which part of the microscope adjusts the amount of light passing through a specimen? 3. Which term means that the microscope will remain in focus as you move from low to high power? 4. What is the only type of material that should be used to clean a microscope lens? Asheet of lens paper 5. If the objective magnifies 3.2X and the ocular magnifies 10X, what is the total magnification? 6. Never focus a specimen with the coarse adjustment knob when you are using the objective or the objective. 7. Which part of the microscope moves in a circular motion and "clicks" the objectives into place? revolving nosepiece 8. How do you prepare a wet mount of pond water? 9. What is the magnification of the ocular? 10X 10. What is the magnification of the high power objective? 40X 11. Which part of the microscope concentrates light through the specimen? 12. 1 mm = ?. 13. The field of view as you move from scanning power to high power. 14. The depth of field as you move from scanning power to high power.

          Name Student ID BIOL 1406 SECTION
LAB 7: MICROSCOPE
Pre-Lab Questions:
1. Which objective should always be used first when focusing a microscope?
2. Which part of the microscope adjusts the amount of light passing through a specimen?
3. Which term means that the microscope will remain in focus as you move from low to high power?
4. What is the only type of material that should be used to clean a microscope lens? Asheet of lens paper
5. If the objective magnifies 3.2X and the ocular magnifies 10X, what is the total magnification?
6. Never focus a specimen with the coarse adjustment knob when you are using the objective or the objective.
7. Which part of the microscope moves in a circular motion and "clicks" the objectives into place? revolving nosepiece
8. How do you prepare a wet mount of pond water?
9. What is the magnification of the ocular? 10X
10. What is the magnification of the high power objective? 40X
11. Which part of the microscope concentrates light through the specimen?
12. 1 mm = ?.
13. The field of view as you move from scanning power to high power.
14. The depth of field as you move from scanning power to high power.

Show more…

Name Student ID BIOL 1406 SECTION
LAB 7: MICROSCOPE
Pre-Lab Questions:
1. Which objective should always be used first when focusing a microscope?
2. Which part of the microscope adjusts the amount of light passing through a specimen?
3. Which term means that the microscope will remain in focus as you move from low to high power?
4. What is the only type of material that should be used to clean a microscope lens? Asheet of lens paper
5. If the objective magnifies 3.2X and the ocular magnifies 10X, what is the total magnification?
6. Never focus a specimen with the coarse adjustment knob when you are using the objective or the objective.
7. Which part of the microscope moves in a circular motion and "clicks" the objectives into place? revolving nosepiece
8. How do you prepare a wet mount of pond water?
9. What is the magnification of the ocular? 10X
10. What is the magnification of the high power objective? 40X
11. Which part of the microscope concentrates light through the specimen?
12. 1 mm = ?.
13. The field of view as you move from scanning power to high power.
14. The depth of field as you move from scanning power to high power.

Added by Nicole R.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Supreeta N

09/09/2023

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Which objective should you start with when focusing a microscope? **4X (scanning objective)** Show more…

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Name Student ID BIOL 1406 SECTION LAB 7: MICROSCOPE Pre-Lab Questions: 1. Which objective should always be used first when focusing a microscope? 2. Which part of the microscope adjusts the amount of light passing through a specimen? 3. Which term means that the microscope will remain in focus as you move from low to high power? 4. What is the only type of material that should be used to clean a microscope lens? 5. If the objective magnifies 3.2X and the ocular magnifies 10X, what is the total magnification? 6. Never focus a specimen with the coarse adjustment knob when you are using the objective or the objective. 7. Which part of the microscope moves in a circular motion and "clicks" the objectives into place? 8. How do you prepare a wet mount of pond water? 9. What is the magnification of the ocular? 10. What is the magnification of the high power objective? 11. Which part of the microscope concentrates light through the specimen? 12. 1 mm = 13. The field of view as you move from scanning power to high power. 14. The depth of field as you move from scanning power to high power.

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Transcript

00:02 Hello students, the question asked is which objective should always be in place both when beginning to use the microscope and when putting it away? the answer is lowest power objective.

00:20 Lowest power objective which is typically 4x or scanning object should always be in place both when beginning to use the microscope and when putting it away.

00:46 Another question asked is which objective is in focus at the greatest and safest distance from the slide? it is the lowest power objective again usually 4x or scanning objective.

01:21 Another question asked is a total magnification of 100x requires to use of the 10x ocular lens with which objective? so if the ocular lens has 10x then the objective must have 10x also to make it 100x.

01:48 10x times 10x gives us 100x.

01:53 If the letter is moved to the right in the field of view it will appear to move towards left side because due to the inversion of the image by the microscopic lens.

02:12 Another question asked is another question asked is a microscope is called a compound when it has more than one set of what? if it has more than one set of lenses including ocular lens and objective lenses.

02:31 Another question asked is which part of the microscope regulates the amount of light? it is the diaphragm or iris of the microscope that regulates the amount of light.

02:52 Another question asked is what word is used to indicate that if the objective is in focus at low power it will also be in focus with a high power.

03:04 The word to indicate is that parfocal...

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