microscopy

• what is a microscope

  a microscope let’s us see things we can’t see with a naked eye
• difference between light and electron microscopes

  light microscopes use light and lenses to form an image by magnifying it - eg tiny individual cells such as nuclei

  electron microscopes - use electrons instead of light to form image (have higher magnification than light microscopes)
• magnification formula

  magnification = imagine size/ real size
• What is the term used for the size of an image?

  Image size
• What is the term used for the real size of an object?

  Actual size
• What does the term "magnification" refer to in imaging?

  The process of enlarging an image's appearance
• What is the formula for calculating magnification?

  • Magnification = Image size / Actual size
• How is the concept of magnification related to image size and actual size?

  Magnification compares image size to actual size
• image size =

  magnification x real size
• how do you get from micrometers to millimetres

  / by 1000
• what are the two lenses

  eyepiece and objective
• what does the objective lens do

  produce a magnified image
• magnification of light microscope =

  magnification of eye piece lens x magnification of the objective lens
• who were the first cells observed by

  robert hooke - 1665 using a light microscope