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

Question

Quizplus · Accepted Answer

The relationship between frequency and wavelength of an electromagnetic wave is given by the formula:

wavelength = speed of light / frequency

Substituting the given frequency of 3 kilohertz (or 3000 Hz) and the speed of light (3 x 10^8 m/s), we get:

wavelength = (3 x 10^8 m/s) / (3000 Hz)

= 100,000 m

= 100 km

Therefore, the wavelength of this electromagnetic wave is more than 1 km, and the best choice is option C.

What Is the Wavelength of an Electromagnetic Wave That Has