Monochromatic light of wavelength $589\;nm$ is incident from air on a water surface. What is the wave length frequency and speed of reflected light ? $\mu=1.33$

Question

$\begin{array}{1 1} Speed = 2.25 \times 10^{-8}; m/s \quad Wave\; legth = 4.42 \times 10^{-7}\;m \quad frequency = 5.09 \times 10^{14} \\ Speed = 2.25 \times 10^{-8}; m/s \quad Wave\; legth = 4.42 \times 10^{7}\;m \quad frequency = 5.09 \times 10^{14} \\ Speed = 2.25 \times 10^{8}; m/s \quad Wave\; legth = 4.42 \times 10^{-7}\;m \quad frequency = 5.09 \times 10^{14} \\ Speed = 2.25 \times 10^{-8}; m/s \quad Wave\; legth = 4.42 \times 10^{-7}\;m \quad frequency = 5.09 \times 10^{4} \end{array} $