Question
What is the wavelength of the radio signal emitted by an AM station broadcasting at $1420 \mathrm{kHz}$ ? Radio waves travel at the speed of light.
Step 1
We know that 1 kHz is equal to 10^3 Hz. So, the frequency in Hz is given by: $$f = 1420 \times 10^3 \, \text{Hz}$$ Show more…
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