If the number on an FM radio dial reads 99.5 MHz, what is the wavelength of this signal?
a.
2.23 m
c.
3.02 m
b.
3.23 m
d.
2.03 m

1 MHz      --- 1 000 000 Hz99.5 MHz ---        xx = 99 500 000 Hz = 99,5x10^6 Hz v = λ . fc = λ . f3x10^8 = λ . 99,5x10^6λ = 3x10^8 / 99,5x10^6λ ≈ 0,0302x10^2λ ≈ 3,02 mi think is the letter (B), isn't it?