Focal length of concave mirror
17/12/2009 14:18
To find the focal length of a concave mirror.
Formula = 1/u + 1/v = 1/f
Errors = opinion when image is sharpest. Ruler accurate to +/-1mm.
Accuracy = Do experiment many times.
An approximation of the focal length was found so as to ensure object was placed outside it and therefore ensuring a real image is being produced.