Answer:[tex]f=272727.272Hz[/tex]
Explanation:
The speed of light (electromagnetic wave) is given by the following formula:
[tex]c=f.\lambda[/tex] (1)
Where:
[tex]c=3(10)^{8}\frac{m}{s}[/tex] is the speed of light
[tex]f[/tex] the frequency
[tex]\lambda=1.1km=1100m[/tex] the wavelength
So, we have to find [tex]f[/tex] from (1):
[tex]f=\frac{c}{\lambda}[/tex] (2)
[tex]f=\frac{3(10)^{8}\frac{m}{s}}{1100m}[/tex]
Finally:
[tex]f=272727.272\frac{1}{s}[/tex]
Knowing [tex]1Hz=\frac{1}{s}[/tex]
[tex]f=272727.272Hz[/tex]
