OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At 100X magnification (medium power), approximately how wide is the field of view?
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1.5 mm
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1.5 cm
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4 mm
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4 cm
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Explanation:
Detailed explanation-1: -If we multiply 1.5 mm by 1/3, we end up with 0.5 mm. Therefore, if the diameter of the low-power field is 1.5 mm, an object that occupies approximately a third of that field has an estimated diameter of 0.5 mm.
Detailed explanation-2: -Likewise, a 100x objective with a field number of 18 would have a FOV of 0.18 mm. The more an object is magnified, the smaller the field of view will be. Therefore, when looking to increase FOV, one of the first considerations should always be whether it’s possible to decrease magnification (figure 2).
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