It depends on the power of the microscope an the skill you have in preparing slides.
Around 150x, good slide prepartion becomes crucial.
a quick search on Google reveals many guides to building your own Scanning Tunneling Microscope (STM). If you do attempt such a feat the following books might be helpful;
I believe that a home made STM can be made for about $100 and should provide atomic resolution.
Bacteria are generally very small - so you would need an electron microscope to see them in any detail. Under a light microscope you would probably only be able to see the overall shape.
high power
A compound light microscope is able to provide more clarity and detail than a single lens microscope, which is its advantage. Compound refers to the microscope having more than one lens.
-It enlarges objects and materials to a different magnification level where you would be able to observe them better in a different point of view.
The purpose of an electron microscope is to be able to study structures and cells in greater detail than with a light microscope or the naked eye
Pertaining to, connected with, produced by, or consisting of, molecules; as, molecular forces; molecular groups of atoms, etc.
No, an electron microscope is needed to see a virus.
Just like when you are closer to an object you are able to see detail, but when you move farther away from it, you see more of the object but less of the detail. For eg, lets consider an example of a calendar hanging on the wall. When you are close to it, you may just be able to see the calender, with the month and the dates and days. As you move farther away from it, you would slowly not be able to see the dates and days too clearly, but you would also be able to see more of the wall on which the calender is hanging. Hence when you are able to see a larger field of view, you see much lesser detail. In scientific terms, the magnification is smaller. As you increase the microscope magnification, you would be able to see more detail, but lesser field.
Without refraction, lenses would not be able to magnify an image.
It is difficult to see detail in cells and tissues due to their microscopic size. This problem can be alleviated with the use of microscope, although certain structures may need a very high magnification and staining to be able to make out clearly.
A microscope isn't used for navigating/exploring the universe. A microscope is for looking at germs, viruses etc. A telescope is able to look at the sky. A microscope is used in science labs. Not use for space explorering.
Using high power objective lense