An FM radio station broadcasts at a frequency of 104.2 MHz (1 MHz = 106 Hz, or cycles per second).
What is the wavelength of the radiation in meters ?
2007-02-06 15:10:54 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Use 3*10^8 for radio waves.
lamda=vw/f
lamda=3*10^8/104.2*10^6
lamda=~2.8791m
2007-02-06 15:24:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Good theory guys, and I am going to guess that you are right, but lets have a more simple answer.
Divide 300 by your given frequency to arrive at the wavelength in meters. This is actually 300, 000,000 divided by 104,200,000 Hz. To shorten it, use the 300 divided by 104.2. The answer is about 2.88 meters.
2007-02-07 01:00:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
the frequency and wavelength are related by the speed of light
speed of light =freq* wavelength (c= f*lambda)
wavelength = speed of light / frequency
make sure the units are consistent
ie freq in Hz, speed of light in m/s
2007-02-06 23:18:35 · answer #3 · answered by elentophanes 4 · 0⤊ 0⤋