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All radio waves travel at light velocity ( 2.998 * 108 m / s)

The relavant equation involved is:

Velocity (fixed) = wavelength * frequency

So, with frequency given and velocity fixed, only wavelength remains to find.

(2.998 * 108) = wavelength * 1000

So:

wavelength = (2.998 * 108) / 1000

= 2.998 * 105 metres

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Q: What speed radio wave with frequency 1000Hz?
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