bluethunder
Feb20-04, 08:36 AM
can somebody explain tome how you get equation ft=f1f2/f1+f2-d ? What other equations I would have to use to derive this equations?
fs are focal points of two converging lenses and ft is total system focal point
any help is greatly appreciated thank you.
fs are focal points of two converging lenses and ft is total system focal point
any help is greatly appreciated thank you.