While electron microscopes offer much higher resolution and can show much smaller structures within the cell, they require specialized preparation of the sample and can't be used to view living cells. Light microscopes, on the other hand, can be used to observe living cells and are generally more accessible.

Here's why a light microscope works for viewing the nucleus:

* Size: The nucleus is relatively large compared to other cell organelles.

* Contrast: The nucleus has a different refractive index than the cytoplasm, meaning it bends light differently, making it appear darker under the microscope.

* Staining: You can use stains that specifically bind to DNA in the nucleus, enhancing its visibility.

Let me know if you have any other questions!