Microscopy and Magnification

• What is the formula for calculating magnification?

  Image Size / Actual Size
• What is the formula for calculating actual size?

  Image Size / Magnification
• What is the formula for calculating image size?

  Magnification * Actual Size
• If an object has an actual size of 40µm and is magnified 2400x, what is the image size in µm?

  96,000µm
• If the image size is 10,000µm and the actual size is 8µm, what is the magnification?

  1,250
• 96,000µm is equal to how many mm?

  96 mm
• Given a cell with an actual size of 40µm and a magnification of x2,400, what is the image size in mm?

  96 mm
• If a red blood cell has a diameter of 8µm and its diameter on a photograph is 10 mm, what is the magnification?

  1,250
• How many micrometers (µm) are in a millimeter (mm)?

  1,000 µm
• Convert 10 mm to micrometers (µm).


  10,000 µm