Answer: 0.03 Hz
Explanation:
The frequency [tex]f[/tex] of a light with a wavelength [tex]\lambda=1(10)^{10} m[/tex] is calculated by the following equation:
[tex]f=\frac{c}{\lambda}[/tex]
Where [tex]c=3(10)^{8}m/s[/tex] is the speed of light
Then:
[tex]f=\frac{3(10)^{8}m/s}{1(10)^{10} m}[/tex]
[tex]f=0.03 s^{-1}=0.03 Hz[/tex] This is the frequency
