the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency?

Answer 1

L = 1 mm to 1m.

L = V/F
F = V/L = 3*10^8/1*10^-3m = 3*10^11 Hz.

F = 3*10^8/1m = 3*10^8 Hz.