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16. Always begin examining microscope slides with which power objective?
16. Always begin examining microscope slides with which power objective?B) low power
C) high power
A) scanning
D) ocular
17. What must be done to a specimen to increase the contrast of the structures viewed?
A) illuminated
B) stained
C) thinly sliced
D) placed under a
18. Which objective provides the greatest field of view?
A) scanning
B) low power
C) high power
D) ocular
19. A microscope has a 4x ocular lens and a 10x objective, what is this microscope's total magnif
A) 4x
B) 14x
C) 40x
D) 400x
20. If the ocular of a microscope is 10x and the objective is set at 100x, then what is the total
magnification of the microscope?
A) 10x
B) 43x
C) 1,000x
D) 430x
Final answer:The scanning objective is used to begin examining microscope slides, staining increases contrast of structures, and the total magnification is calculated by multiplying the magnifications of the ocular and objective lenses.Explanation:The correct power objective to begin examining microscope slides is thescanning objective. This objective has the lowest magnification and provides the widest field of view, making it ideal for locating and positioning the specimen.To increase the contrast of the structures viewed, the specimen should bestained. Staining helps to highlight specific structures or components of the specimen and improve visibility under the microscope.Thescanning objectiveprovides the greatest field of view. As the magnification increases, the field of view decreases, allowing for more detailed observations of smaller areas.The total magnification of a microscope is calculated by multiplying the magnification of theocular lens(eyepiece) with the magnification of theobjective lens. In this case, with a 4x ocular lens and a 10x objective lens, the total magnification is 40x (4 x 10).For the second question, if the ocular is 10x and the objective is set at 100x, the total magnification of the microscope is1,000x(10 x 100).Learn more about Microscope slides and magnification here:brainly.com/question/30929251...