GCSE Biology- Microscopy
Parts of a light microscope are that they have a coarse focus, fine focus, light, slide, stage, eye piece and an objective lens.
Electron Microscopes
Magnification is the ability to have a microscope produce an image of a smaller/larger scale
Light Microscopes
Living samples
Fixed samples
Light microscope uses light and mirrors.
Smaller wavelength becomes blurred.
Magnify incredible detail
Study cell interior
Resolving Power
Find Bacteria arrays
Cheaper than electron
Commonly used in schools and other common places
Resolution is the ability of a microscope to specify/ recognise detail.
They include concave and convex lenses.
Conversions Sums
Nano (n) divided by 1000 into Micro (h) divided by 1000 in Milli (m) and divided by 1000 into base unit (cm)
Base unit (cm) x 1000 milli (m) x 1000 Micro (h) x 1000 nano (n)
actual= image x magnification
magnification= image/ actual