The dial on an FM radio contains numbers ranging from about 88 to about 108. The
ID: 2122956 • Letter: T
Question
The dial on an FM radio contains numbers ranging from about 88 to about 108. These numbers correspond to the frequency of the radio station as measured in megahertz. What is the corresponding range of wavelengths? (Enter your answers from smallest to largest.)from m to m The dial on an FM radio contains numbers ranging from about 88 to about 108. These numbers correspond to the frequency of the radio station as measured in megahertz. What is the corresponding range of wavelengths? (Enter your answers from smallest to largest.)
from m to m
Explanation / Answer
C=frequency x wavelength
C=3x10^8m/s
88MHz=88x10^6Hz Wavelength(m)=C/f Wavelength(m)=3x10^8 / 88x10^6 = 3.409m
108MHz=108x10^6Hz Wavelength(m)=C/f Wavelength(m)=3x10^8 / 108x10^6 = 2.77m
Answers smallest to largest: 2.77m to 3.409