www.bbcnoun.com.ng 10/10 A method of detecting isotopes which depends on the production of ion pairs by the emitted radiation to give an electrical signal that can be amplified and registered is known as ……..? Electrical method The component of fluorescence Microscope that blocks the visible light and allows only ultraviolet light to pass through it is reffered to as ______ Exciter filter _______describes the technique by which emitted energy is converted to light by means of a scintillator, using fluorography or intensifying screens Indirect autoradiography The major differences between a light microscope and fluorescence microscope are the presence of ultraviolet light source, exciter filter and ……. in the fluorescence microscope Barrier filter _______ is the luminescence of a substance when it is excited by radiation Fluorescence The development of electron microscopes started in the ______ 1930s Electron microscopes came into regular use in_______ 1950s _______ is a system of amplification in which the silver atoms cause the entire silver halide crystal to be reduced to metallic silver. Development The resolution of an electron microscope is about_______ in practice, compared with 200nm for the light microscope 0.5nm In electron microscope, _______is used as electrons Radiation