Answer
See explanation.
Work Step by Step
The frequency is $f=\frac{c}{\lambda}=5.77\times10^{14}Hz $.
The momentum is $p=\frac{h}{\lambda}$
$$p=\frac{6.626\times10^{-34}J \cdot s}{(520\times10^{-9}m) }= 1.27\times10^{-27}kg \cdot m/s $$
$$ E=hf=h\frac{c}{\lambda}$$
$$E=\frac{1.24\times10^{-6}eV\cdot m}{520\times10^{-9}m}=2.38 eV$$