Question

Compute the wavelength of the radio waves from the following stations.

(a) an AM station operating at a frequency of 830 kHz
m
(b) an FM station with a frequency of 93.9 MHz
m

Answer 1

a. 3.19 m

b. 361.45 m

Step-by-step explanation:

wavelength = speed of light ÷ frequency

speed of light = 3.00 x 10^8 m/s

AM is KILOhertz

830 kHz = 830,000 Hz

FM is MEGAhertz

93.9 MHz = 93,900,000 Hz

a.

wavelength = 3.00 x 10^8 m/s ÷ 830,000 Hz =

361.45 m

b.

wavelength = 3.00 x 10^8 m/s / 93,900,000 Hz = 3.19 m