What is high powered 4x 10x 40x or 100x?

The terms 4x, 10x, 40x, and 100x refer to the magnification levels of optical instruments, such as microscopes or telescopes. Each number indicates how many times larger an object appears compared to its actual size, with 4x providing the lowest magnification and 100x the highest. Higher magnifications allow for more detailed observation of small objects, but they often require more precise focusing and can have a narrower field of view.