Answer:
It lies in in the visible region.
Frequency: is 7.407 × 10^-14 Hz
[tex]{ \bf{V = f \lambda}} \\ { \tt{3.0 \times {10}^{8} = f \times (405 \times {10}^{ - 9}) }} \\ { \tt{f = 7.407 \times {10}^{14} \: hertz}}[/tex]
Explanation:
V is speed of light.
f is frequency
lambda is the wavelength
