# The diameter of the pupil of human eye is about $2mm$. Human eye is the most sensitive to the wave length $555\;nm$ Find the limit of resolution of human eye.
$\begin{array}{1 1} 33.9 \times 10^{-4} rad \\ 3.39 \times 10^4 \;rad \\ 33.9\times 10^4 \;rad \\ 3.39\times 10^4\;rad \end{array}$