Microscope In the case of microscope, we wish to measure the distance between object or see microstructure. However, unlike in the case of telescope, the objects are relatively at a short distance from objective lens. Let S1 and S2 are two objects (like light source, though these objects are not self luminous, light falling on them, after reflection reaches to the objective lens and the object behave like light source and I1and I2 are the images corresponding to them). The images will again be in the form of disk surrounded by dark and bright rings and these will be just resolved when Rayleigh criterion is satisfied i.e .