What is the wavelength of an electromagnetic wave that has a frequency of 3 kilohertz?
A) 1 km
B) more than 1 km
C) less than 1 km

Question

Quizplus · Accepted Answer

The wavelength ($\lambda$) of an electromagnetic wave can be calculated using the formula $\lambda = \frac{c}{f}$, where $c$ is the speed of light ($3 \times 10^8$ m/s) and $f$ is the frequency of the wave. For a frequency of 3 kilohertz (3,000 Hz), the wavelength is $\frac{3 \times 10^8 \text{ m/s}}{3,000 \text{ Hz}} = 100,000 \text{ m}$ or 100 km, which is more than 1 km.

What Is the Wavelength of an Electromagnetic Wave That Has