Which of the following would use a convex lens?

magnifying glass
telescope
microscope
all of the above

All of the above, their Convex lenses are thicker at the middle. Rays of light that pass through the lens are brought closer together (they converge). A convex lens is a converging lens. When parallel rays of light pass through a convex lensthe refracted rays converge at one point called the principal focus

The answer is a i think

The rearrangement of particles in a physical change. hope this