Use Magnification with Matching Length Units - Practice 2

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Magnification is image length divided by actual length when both use the same units. To recover actual size, divide the image length by magnification. Larger images do not necessarily resolve more detail.

Worked example

A 20 mm image at 1000x represents 20/1000 mm = 0.020 mm = 20 micrometers.

Question 1 A model micrograph shows a structure 35 mm long at 1000x magnification. What actual length does that represent in micrometers? Use 1 mm = 1000 micrometers. Answer

Question 2 A model micrograph shows a structure 40 mm long at 1000x magnification. What actual length does that represent in micrometers? Use 1 mm = 1000 micrometers. Answer

Question 3 A model micrograph shows a structure 45 mm long at 1000x magnification. What actual length does that represent in micrometers? Use 1 mm = 1000 micrometers. Answer

Question 4 A model micrograph shows a structure 50 mm long at 1000x magnification. What actual length does that represent in micrometers? Use 1 mm = 1000 micrometers. Answer

Question 5 A model micrograph shows a structure 55 mm long at 1000x magnification. What actual length does that represent in micrometers? Use 1 mm = 1000 micrometers. Answer