What is the frequency of a radio wave of wavelength 150m if the velocity of radio waves in free space is 3 x (10^8ms^{-1})?
-
A.
4.5 x (10^{10})Hz -
B.
5x (10^{9}Hz) -
C.
4.5 x (10^{8}Hz) -
D.
2 x (10^{7}Hz) -
E.
2 x (10^{6}Hz)
Correct Answer: Option E
Explanation
V=f(lambda, f =frac{v}{lambda}= frac{3times10^8}{150}Rightarrow 2times10^6)Hz