Radio waves travel at the speed of light,300,000 km/s.The wavelength of a radio wave received at 100 MHz is
A)0.3 m.
B)3.0 m.
C)30 m.
D)300 m.
E)none of the above

Question

Quizplus · Accepted Answer

The wavelength ($\lambda$) can be calculated using the formula $\lambda = \frac{c}{f}$, where $c$ is the speed of light (300,000,000 m/s) and $f$ is the frequency (100 MHz or 100,000,000 Hz). Thus, $\lambda = \frac{300,000,000}{100,000,000} = 3$ meters.

Radio Waves Travel at the Speed of Light,300,000 Km/s