While the collision of a photon with an electron,,for locating the position of the electron,does the photon enter the electron microscope or the electron deflects and enters into the electron microscope??plz explain...

Asked by isha007 | 16th Aug, 2010, 12:00: AM

Expert Answer:

In an electron microscope:

The light source is a beam of very fast moving electrons.

The specimen usually has to be specially prepared and held inside a vacuum chamber from which the air has been pumped out because electrons do not travel very far in air.

The lenses are replaced by a series of coil-shaped electromagnets through which the electron beam travels. In an electron microscope, the coils bend the electron beams the same way.

The image is formed as a photograph (called an electron micrograph) or as an image on a TV screen.

Answered by  | 17th Aug, 2010, 09:31: AM

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