So, the design of mirror and lens just for certain purpose, is'n it?
Then, we derived the fermat principle that can we use to design the mirror and lens for certain purpose, is'n it
Okay thank you,,
So when we talk about optic geometry, we just explain the reflection and refraction, isn't it ??
then what if the answer to the question "how do you use Fermat's principle to explain the need for forms of mirrors and lenses"?
I want to ask something about light, light can be defined as ray, wave, or particle. The group formed because of the wavelength, if the wavelength is less than the dimension of equipment it is grouped into ray, if the wavelength is equal to the dimension of equipment it is grouped into wave, and...