Question

A radio wave travels through space with a frequency of 2 x 104 Hz. If the speed of the radio wave is 3 x 108 m/s, what is the wavelength of this wave?
A. 6.7 x 10-4 m
B. 6 x 1012 m
C. 1 x 104 m
D. 1.5 x 104 m
c = f*w where c is speed of light in m/s, f is frequency in Hz and w is the wavelength in meters.
Thank you!
The answer is D.

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