What's the difference between surface plasmon resonance spectroscopy and surface plasmon resonance microscopy?

In light microscopy, when magnification is increased, the lens focuses closer to the sample.  This makes the user more likely to ram the sample into the lens.  Why is it common for the lens to focus closer to the sample at higher magnifications? What can be done to mitigate this risk?

Explain in detail the study of microbial structure microscopy.

Briefly explain the difference between Wright Staining and H&E Staining (why use one over the other)

Compare and contrast the operation of Optical microscopy and TEM in terms of Abberations

Which Two types of electron microscopy are in routine use in microbiology? Explain

If the total magnification of a microscope is 700X and the ocular lens magnifies by a factor of 10x, what is the magnification of the objective lens that was used? Paragraph BIU

How can bright field and dark field optical microscopy be used in characterizing materials? What kind of contrast is used in these techniques?

how is scanning electron microscopy unique and usefulm what makes this so important?

How is confocal scanning laser microscopy differentfrom fluorescence microscopy? In what ways are theysimilar?