Question

Compare and contrast radio waves and X–rays. Describe two ways that they are alike and two ways that they are different.

I know how they are different, x-rays can penetrate and radio waves give out signals, x-rays also have higher frequencies. How are the alike? I seem to have forgotten.

Answer 1

Both x-rays and radio waves are electromagnetic radiation, just of different wavelengths and frequencies

Answer 2

Both also travel at the speed of light. That should do.