Types of microscopes and their functions?

Answer 1

To my knowledge, there are biological, ultra and electron microscopes.

The basic secret is when you want to view a particle or a point (dot) you need light to fall on it and then get reflected or deviated.

This reflected or deviated light which carries the information of the observed one is to be focused to our (human eye). Our eye is a lens which focuses light on the retina.

If the particle or the dot is so small then resolution may not be enough and so the object cannot be seen at all.

So to improve the same, we need some magnifying set up which is nothing but using lenses known to be objective lens and eye piece.

This is mainly achieved in case of biological microscope, where we see slides so clearly.

If the particle becomes still smaller then another problem arises.

The light fallen on the particle will not be reflected or deviated at all because the size is much smaller than the wavelength of the light been used.

So instead light, if ultra violet ray, whose wavelength is much smaller, is used then particles could be sensed. Any way UV is not visible. But that can be photographed. This is the case of ultra microscope.

If still the problem becomes worse as the particle size goes down, then X ray has to be used. But main drawback with X radiation is that it cannot be focused by using any electric or magnetic field.

Here de Broglie's wave nature of particle comes out as a boon to humanity.

As we use fast moving electrons, it would act as a wave with wavelength of the order of nano meter. Hence the invention of electron microscope. Moving electrons can be deflected and hence focused by using magnetic field.

Answer 2

one of it is the compound microscope BY:Ricmar V. Fantilanan i like bio------ cause it helps me BY:Ricmar V. Fanilanan