How are electron microscopes different to light microscopes?
1. electron microscopes use beams of electrons instead of light. 2. electron microscopes cannot be used for living samples. 3. electron microscopes are very expensive. 4. electron microscopes have higher magnification and higher resolution
What does resolution mean?
The resolution of a device is the smallest change a device can measure. e.g. a ruler with mm markings has resolution of 1mm
What is the equation for total magnification?
Total magnification = objective lens magnification x eyepiece lens magnification
What is the equation for magnification?
Magnification = size of image / actual size of object
