A star sends out a radio wave into space that has a wavelength of 5.5 meters. What is the frequency of this radio wave?

1 Answer
Trevor Ryan.
Apr 1, 2016

#54.545MHz#

Explanation:

Since a radio wave is an electromagnetic wave, it travels through air and vacuum at the speed of light #c=3xx10^8m//s#.

We may hence use a wave equation to find its frequency :

#c=f lambda#

#therefore f=c/lambda#

#=(3xx10^8m//s)/(5.5m)#

#=54.545MHz#

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