NEET 2006 Biology question

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

(1)The resolution power of the electron microscope is much higher than that of the light microscopeCorrect
(2)The resolving power of the electron microscope is 200-350 nm as compared to 0.1-0.2 nm for the light microscope
(3)Electron beam can pass through thick materials, whereas light microscopy requires thin sections
(4)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

Answer: (1)

Solution

The resolving power of a microscope depends inversely on the wavelength of the radiation used. Electrons have a much shorter wavelength than visible light, so the electron microscope has a far higher resolving power (about 0.1-0.2 nm against about 200-350 nm for the light microscope) and reveals the fine structure

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Question ID VK-089684