Question

the fourier transform of cos
$\cos(2\pi \: t)$
is​

Answer 1

Developing a theory to explain the nature of light was a difficult task. An acceptable theory in science is required to explain all the observations made on a particular phenomenon. Light, appears to have two different sets of behaviors under different circumstances. As you will see, sometimes light behaves like wave-form energy and sometimes it behaves like an extremely tiny particle. It required the very best scientific minds from all over the world to put together a theory to deal with the nature of light.