Transmission electron microscope Principle amp Working SEM amp TEM

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Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a detector such as a scintillator attached to a charge-coupled device or a direct electron detector. • Bioninirmal provides All information about Biology in Bengali...usually Biology is Not explained well in regional language..so stds are facing many problems when read Biology In Bengali......the videos are described in Notes form.... • For ONLINE WBSSC SLST BIOLOGY Coaching put your Quarries in this whatsapp number @8348091202 • #botany#zoology#physiology

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