The speed of light is roughly 300,000,000 m/s. A radio station has frequency 100 megahertz. What is the station's wavelength?
A) 30,000,000,000 meters
B) 3,000,000 meters
C) 3.0 meters
D) 0.33 meters

Question

Quizplus · Accepted Answer

The wavelength ($\lambda$) can be found 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 megahertz or 100,000,000 Hz). Thus, $\lambda = \frac{300,000,000}{100,000,000} = 3$ meters.

The Speed of Light Is Roughly 300,000,000 M/s