Question

the lens can be used to understand what the rules?​

Answer 1

Answer:

When light interacts with objects several times as large as its wavelength, it travels in straight lines and acts like a ray. A ray is simply a straight line that originates at a point.

Ray tracing is the method for determining the paths light takes through matter, such as optical systems that include lenses.

A thin lens is defined as one with a thickness that allows rays to refract, as illustrated in, but that does not allow properties such as dispersion and aberrations. An ideal thin lens has two refracting surfaces but the lens is thin enough to assume that light rays bend only once.

There are five basic rules for tracing rays through a lens.