An electromagnetic radio wave is received by a transmitter before it is converted to a sound wave. the radio wave has a wavelength of 23,076 m and a frequency of 13,000 hz. what velocity is the wave traveling at before the transmitter converts it to a sound wave? a 1.76 m/s b 0.56 m/s c 3.31 × 102 m/s d 3.00 × 108 m/s

By definition, the wavelength of an electromagnetic wave is calculated using the following formula:

Where:

\lambda = wavelength

c = speed of light =

f = frequency of the wave.

This relation means that the division of the wavelength λ between the frequency f is always equal to the speed of light.

Thus:

the velocity v of this wave must be equal to c.

Finally the correct answer is D.

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