Optical microscopes

• How does an optical microscope work?

  • Beam of light used to create image
  • glass lens used for focusing
  • 2D coloured image produced
• Complete the following about the advantages and disadvantages of using optical microscopes.

  • Poorer resolution as long wavelength of light - small organelles not visible
  • lower magnification
  • can view living samples
  • simple staining method
  • vaccum not required