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InterviewSolution
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Electron microscope has a high resolution power . This is due toA. electromagnetic lensesB. very low wavelength of electron beamC. low wavelength of light source usedD. high numerical aperture of glass lenses used |
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Answer» Correct Answer - B Resolving power Le, defined as the ability of an optical system or objective lens to distinguish two closely placed points as two distinct separate points. It depends on wavelength of light andnumerical aperture, as limit of resolution `(L_(m)) = (0.61 lambda)/(NA)` in electron by the low wavelength of electrons . |
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