I've been given that a radio wave travels at $1230 \text{kHz}$

$(1230 \times 10^3 \text{Hz})$

I simply had to find the wavelength of the radio wave, since a radio wave travels at $c$. I simply set up the following: $$c = \lambda \times(1230 \times 10^3)$$ where $c$ is the speed of EM waves

solving for $\lambda$ gives me approx. $2.44\times 10^12 m$, but my solution sheet shows $244 m$. Where is the unit conversion incorrect?


closed as off-topic by The Photon, Qmechanic Apr 16 at 4:43

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  • 1
    $\begingroup$ Count your exponents! $\endgroup$ – Pieter Apr 15 at 23:01
  • $\begingroup$ Dividing by a power of 10 changes the sign in the exponent! $\endgroup$ – noah Apr 15 at 23:10
  • $\begingroup$ Voting to close because this appears to be a simple math error. $\endgroup$ – The Photon Apr 16 at 4:06
  • $\begingroup$ Try doing it on a calculator, but make sure you include all the 0's. $\endgroup$ – hdhondt Apr 16 at 5:06