Gamma waves travel faster than radio waves. Ultraviolet waves make up most of the spectrum. X-rays travel slower than infrared waves. Visible light waves are a small part of the spectrum.
I gave my students this multiple choice question: Which statement about the electromagnetic spectrum is accurate?

Only one answer is correct among these 4 choices:
- Gamma waves travel faster than radio waves.
- Ultraviolet waves make up most of the spectrum.
- X-rays travel slower than infrared waves.
- Visible light waves are a small part of the spectrum.

Could you tell me which one is correct?

Visible light waves are a small part of the spectrum.