What is the wavelength of a radio wave signal transmitted at a frequency of 7.2 MHz?
A. 42 m
B. 4.2 m
C. 29 m
D. 0.024 m
Answer:A
What is the wavelength of a radio wave signal transmitted at a frequency of 7.2 MHz?
A. 42 m B. 4.2 m C. 29 m D. 0.024 m