Question

A radar operates at a wavelength of 3 centimeters. what is the frequency of the these waves? the speed of light is 3 × 108 m/s .

Answer 1

We are given information:
λ
`= wavelength = 3cm = 0.03m \\ c = speed of light =  3* 10^(8)m/s`

Formula that connects wavelength and frequency is:

`frequency= (speed of light)/(wavelength) \\ f= (3* 10^(8))/(0.03) \\ f=1 * 10^(10) Hz = 10GHz`