What is lean enterprise and why is it essential your businesses' survival? Read part one in a series of nine articles about lean enterprise from VIPGroup.
The numerical aperture of a microscope objective defines the objective's resolution. Each microscope objective has a minimum and maximum magnification necessary for the details in an image to be resolved. A simple formula for the minimum value is (500 x NA). And for the maximum magnification (1000 x NA).
In the newtonian telescope the light collected by the large concave mirror is reflected onto a small plane mirror at a 45Âº angle to the optical axis, and transmitted to the eyepiece, which is at right angles to the optical axis (Fig. T1). See binoculars; eyepiece; telescopic magnification; objective. astronomical telescope See telescope.