Question

An FM station broadcasts classical music at 94.7 MHz (megahertz, or 106 Hz). Find the wavelength...

An FM station broadcasts classical music at 94.7 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and Å) of these radio waves.

_______ m

nm (Enter your answer in scientific notation.)

____Å (Enter your answer in scientific notation.)

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Answer #1

f = 94.7 MHz
= 94.7*10^6 Hz
= 9.47*10^7 Hz


use:
lambda = c/f
=(3.0*10^8 m/s)/(9.47*10^7 s-1)
= 3.17 m

Answer:
3.17 m
3.17*10^9 nm
3.17*10^10 A

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