Microscope and telescope are instruments use to magnify small objects. Microscope is use to magnify small objects with short distance. On the other hand telescope magnify relatively large objects whith large distance. Microscopes has one refractive lens whereas telescope has two lens ; one is called as objective lens and other is called as focal lens. Objective lens gather all the light rays and merge them at focal lens from where we can see a magnified image of an object. Microscope and telescope perform same function but in different fields. Microscope perform a special role in làbortary to see parasites , microorganisms, bacteria,leaves single cell layer however telescope tàke a part to sèe stars, moon and galaxy.