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Chapter 2
Question | Answer |
---|---|
What total magnification will be achieved if the 10x eyepiece and the 10x objective are used? | 100x |
What total magnification will be achieved if the 10x eyepiece and the 100x objective are used? | 1,000x |
The circle represents the __________ through the microscope. | Field of view |
In millimeters, what is the diameter of the scanning field of view? | About 4.5 mm using a 4x objective |
Microscopic objects often are measured in micrometers. A micrometer equals 1/1,000 of a millimeter and is symbolized by µm. In micrometers, what is the diameter of the scanning power field of view? | About 4,500 micrometers |
If a circular object or specimen extends halfway across the scanning field, what is its diameter in millimeters? | In micrometers, what is its diameter? |
The sketch of the millimeter scale as it appears using the low-power objective would appear larger than when using the scanning objective magnification. | True |
What do you estimate the diameter of this field of view to be in millimeters? | About 1.7 mm using a 10x objective |
How does the diameter of the scanning power field of view compare with that of the low-power field? | The diameter of the scanning power field of view is about 2.6 times greater than that of the low-power field of view. |
Why is it more difficult to measure the diameter of the high-power field of view than that of the low-power field? | The student is unable to see two adjacent millimeter lines on the scale in the high-power field of view. |
0/0.55 points awarded Item What change occurred in the intensity of the light in the field of view when you exchanged the low-power objective for the high-power objective? | The light intensity decreased when exchanging the low-power objective for the high-power objective. |
The sketch of the numerical 4 (or 9) or letter e as it appears through the scanning objective of the compound microscope looks identical in appearance as it appears on the prepared slide. | False |
What has the lens system done to the image of the numeral or letter? Select the appropriate box(es) that best answer this question. | Image is upside down, image is reversed from right to left |
When you moved the ruler to the right, which way did the image move? | Left |
When you moved the ruler away from you, which way did the image move? | Toward me |