Yes, they appear as small black dots.
ribosomes are not seen by using a light microscope bcz of its small size
You would need an electron microscope to see a ribosome, as they are very small structures, typically around 20-30 nanometers in size, which are below the resolution limit of a light microscope. Electron microscopes use a beam of electrons instead of light to achieve much higher resolution.
The transmission electron microscope operates on the same principle as the light microscope but uses electrons instead of light. What you can see with a light microscope is limited by the wavelength of light. Transmission electron microscopes use electrons as "light source" and their much lower wavelength makes it possible to get a resolution a thousand times better than with light microscope.
With a normal light microscope, you can't look directly at your finger. It's just too thick for light from underneath to pass through, to reach the microscope lenses. It might be possible to scrape off thin layers of dead skin and put them on a slide to view through a microscope, though.
Yes, light passes through a microscope to illuminate the specimen, allowing it to be viewed. The light is focused by lenses in the microscope to create a magnified image of the specimen.
The light source, such as a bulb or LED, sends light through the microscope. This light is focused by lenses to illuminate the specimen being observed.
After leaving the condenser in a compound light microscope, light passes through the specimen on the slide.
A diaphragm regulates the amount of light entering the microscope. Stage opening allows light to pass through the stage of the microscope.
A light microscope produces an image of a specimen by passing visible light through it. This light passes through the specimen, is refracted and magnified by the lenses in the microscope, and then projected to create a magnified image that can be viewed through the eyepiece or captured using a camera.
If your microscope is a Transmission Microscope then light has to pass through the specimen (that is how the microscope works).Other kinds of microscopes may not require this.
no it's usless to measure it the microscope
No, you need a florescent microscope to see that.