INTRODUCTION
MICROSCOPE PARTS MAGNIFICATION RESOLUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glass lenses
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X rays
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electromagnets
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light
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Detailed explanation-1: -The electron microscope uses a beam of electrons and their wave-like characteristics to magnify an object’s image, unlike the optical microscope that uses visible light to magnify images.
Detailed explanation-2: -Electron microscopes use a beam of electrons rather than visible light to illuminate the sample. They focus the electron beam using electromagnetic coils instead of glass lenses (as a light microscope does) because electrons can’t pass through glass.
Detailed explanation-3: -In electron microscopes electromagnetic lenses are used which interact with magnetic properties of beam of electrons and control/ focus them.
Detailed explanation-4: -TEMs have a maximum magnification of around x1, 000, 000, but images can be enlarged beyond that photographically. The limit of resolution of the transmission electron microscope is now less than 1 nm. The TEM has revealed structures in cells that are not visible with the light microscope.
Detailed explanation-5: -Which of the following is used to focus the electrons when using an electron microscope? Explanation: Electron microscopes use beams of electrons instead of light. The electrons are focused by magnetic fields rather than by lenses.