INTRODUCTION TO MICROSCOPY CELL BIOLOGY
MICROSCOPY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When looking at a specimen on your slide, you should always start with the
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low objective lens
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medium objective lens
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high objective lens
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super extra high power lens
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Explanation:
Detailed explanation-1: -Always start with the stage as low as possible and using scanning objective (4x).
Detailed explanation-2: -Why do you need to start with 4x in magnification on a microscope? The 4x objective lens has the lowest power and, therefore the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective.
Detailed explanation-3: -The depth of focus is greatest on the lowest power objective. Each time you switch to a higher power, the depth of focus is reduced. Therefore a smaller part of the specimen is in focus at higher power. Again, this makes it easier to find an object on low power, and then switch to higher power after it is in focus.
There is 1 question to complete.