Tag Archives | microscope

Write a short note on Electron microscope

In case of electron microscope, the source of illumination is electron beam. Electrons emitted by cathode filament are deflected by an electromagnetic field and pass smoothly in the high vacuum maintained inside the microscope.

By |2011-01-10T22:40:06+00:00January 10, 2011|Biology|Comments Off on Write a short note on Electron microscope

Write a short note on Resolving power of microscope

It is the capacity of the microscope to differentiate the images of two points that are close together on the object. The smallest separation (linear distance) that can be resolved by the midroscope is called limit of resolution (d0). It can be calculated by Abbe’s formula:

By |2011-01-10T22:39:34+00:00January 10, 2011|Biology|Comments Off on Write a short note on Resolving power of microscope

How was the microscope invented ?

Most of the germs are so small that they are not visible to the eyes. The microscope can magnify the size of small things many times. The development of the microscope has an interesting story.

By |2011-01-05T13:01:50+00:00January 5, 2011|Physics|Comments Off on How was the microscope invented ?
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