What is the wavelength of an electromagnetic wave that has a frequency of 3 kHz?
A)less than 1 km
B)1 km
C)more 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. For a frequency of 3 kHz ($3 \times 10^3$ Hz), the wavelength is $\frac{3 \times 10^8 \text{ m/s}}{3 \times 10^3 \text{ Hz}} = 10^5 \text{ m}$ or 100 km, which is more than 1 km.

What Is the Wavelength of an Electromagnetic Wave That Has