Question

Relation between wavelength and carrier frequency is _________

(a) λ=c/f

(b) λ=c*f

(c) λ=f/c

(d) λ=1/f

The question was posed to me at a job interview.

I'd like to ask this question from Free Space Propagation Model topic in division Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

Correct option is (a) λ=c/f

To explain I would say: Wavelength is inversely proportional to carrier frequency. For electromagnetic radiation in free space, wavelength is a ratio of speed of light (c) and carrier frequency (f). Speed of light is 3*10^8 m/s. The unit for wavelength is meters.