A major breakthrough in the studies of cells came with the development of electron microscope. This is because-

Question

( A ) The electron microscope is more powerful than the light microscope as it uses a beam of electrons which has wavelength much longer than that of photons
( B ) The resolving power of the electron microscope is 200-350 nm as compared to 0.1-0.2 nm for the light microscope
( C ) Electron beam can pass through thick materials, whereas light microscopy requires thin sections
( D ) The resolution power of the electron microscope is much higher than that of the light microscope