1.5 microscopy 4 - calculations

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7 Terms

1
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What equation is used to calculate magnification?

Magnification = image size ÷ actual size

2
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What equation is used to calculate image size?

Image size = magnification × actual size

3
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What equation is used to calculate actual size?

Actual size = image size ÷ magnification

4
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What units must image size and actual size be in when calculating magnification?

The same units.

5
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Why is unit conversion important in microscopy calculations?

Because image size and actual size must be in the same units before calculating.

6
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Calculate the magnification if the image size is 20 mm and the actual size is 10 µm

Convert 20 mm to 20 000 µm, then magnification = 20 000 ÷ 10 = 2000.

7
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State one common mistake in microscopy calculations

Forgetting to convert units before calculating.