Enough information? (WaveLength Question)

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AM modulation operates at specific frequencies, with 1 AM corresponding to 1 KHz and 800 AM to 800 KHz. To calculate the wavelength of a radio station broadcasting at 820 AM, one needs to know the frequency, which is 820 KHz. The speed of electromagnetic waves, including radio waves, is approximately 3.0 x 10^8 m/s, which is the speed of light. Using the formula wavelength = speed/frequency, the wavelength can be calculated. Understanding these principles is essential for solving related problems in radio frequency and wave propagation.
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All it the question says is that AM modulation operates at 1 AM = 1 KHz
and 800 AM = 800 KHz. the questions says to calculate the wavelength of radio station broadcasting at 820 AM
now i know that frequency is 820 KHz but i don't know what velocity it travels at so how do i calculate the wavelength from that
 
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You should know the speed it travels at.

What speed do all electromagnetic waves travel at?
 
i don't know its not given in the book..
 
looking it up on the internet it says 3.0 x 10^8 m/s is that correct
 
yes, that's the speed of light and it's the speed at which all em waves
 

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