electron micrograph water molecule?

Answer 1

Magnification is how much an image is enlarged under a microscope.

Resolution is the amount of detail you can see in an image. You can enlarge a photograph indefinitely using more powerful lenses, but the image will blur together and be unreadable. Therefore, increasing the magnification will not improve the resolution. This is also known as the resolving power.

In a compound microscope, the wavelength of the light waves that illuminate the specimen limits the resolution. The wavelength of visible light ranges from about 400 to 700 nanometers. The best compound microscopes cannot resolve parts of a specimen that are closer together than about 200 nanometers.

Just like in a compound microscope, the wavelength of light limits resolution. This microscope does not use light to see through the specimen, but uses light to aid in viewing the specimen under magnification. The resolution of the dissecting or stereoscope is about 120 nanometers.

Like the compound light, the resolution for a confocal microscope is about 1.2 nanometers.

In a SEM, an electron beam scans rapidly over the surface of the sample specimen and yields an image of the topography of the surface. The resolution of a SEM is about 10 nanometers (nm). The resolution is limited by the width of the exciting electron beam and the interaction volume of electrons in a solid.

In a TEM, a monochromatic beam of electrons is accelerated through a potential of 40 to 100 kilovolts (kV) and passed through a strong magnetic field that acts as a lens. The resolution of a TEM is about 0.2 nanometers (nm). This is the typical separation between two atoms in a solid

Matter is mostly space in between small particles and these particles are made of subatomic particles that are always in motion.

If you are familiar with photography, then you can imagine what a still photograph would look like when using long exposure times. At night, you can take a picture of a landscape without using a flash by mounting your camera on a tripod and having the shutter open for several minutes. The reflected light from the stars is enough to react with the negative and leave an image.

It is also possible to use a strobe light and have someone walk across the frame leaving an image on the negative at the location he was standing every time the strobe light flashed. The image would be crisp because the duration of the stobe is short and the distance the person traveled during that time frame was not perceptable.

If the person walked slowly throught the frame without a stobe, the still objects would be in focus and the moving object would be perceived as a blur going across the back ground.

On the molecular level, there are not still objects. There would not be a still back ground and the best you could hope for is a blur. It would be like looking at a TV screen that was not tuned to any channel and all you had was snow. Is there a meaningful image that can be percieved?

Answer 2

Your question makes no sense. Can you ask it again in a different way? What does micrograph mean? Not a chemistry term.