None. A microscope is not need to figure out the mintmark. It is big enough to see. You can however use a magnifying glass to see other details better.
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
The part of the microscope that you look into is called the eyepiece.
You look through a microscope through a part called the eyepiece.
An optical microscope or an electron microscope.
The eyepiece or ocular lens is the part of the microscope that you look through. It is located at the top of the microscope and magnifies the image of the specimen being viewed.
Sperm should look similar to a tadpole under a microscope.
Stereo Microscope
The lens that you should use to first look at a slide on a microscope is a low power lens then move on to a higher power for more clarity.
The part of the microscope that you look into is called the eyepiece.
You can see the oil when you look through the eyepiece.
You look through a microscope through a part called the eyepiece.
Microscope
The eyepiece is located at the top of the microscope where you actually look into the microscope.
What you do first when you use a microscope you put the slide in. Then you focus the microscope. Then you look at the object you are supposed to or look at the object you want to.
AnswerWhat is different about it? If it is a US Dime, it should look like all the dimes dated from 1916 through 1945. If you are comparing it to a new dime, it will look considerably different - a portrait of Winged Liberty instead of Roosevelt on the front and a fasces instead of a torch on the reverse. It will also be made of silver instead of copper plated with copper-nickel.
You should look at anything interesting under a microscope! I once got a small toy microscope at a book fair. I looked at many things but the thing that interested me the most was the picture in a book. If you look at a color in a picture in a book you will see that it's not yellow (or any color) that your looking at! It's really millions and millions of different colors! It's sooo... AWESOME!!! :-)
so the objective lens will not touch the slide.