Multiple choice

what do photons do?

  1. travel at the speed of sound in the form of a wave

  2. travel at the speed of light to form a wave

  3. travel at the speed of sound to form a straight line

  4. travel at the speed of light to form a straight

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photons are particles of light that travel at the speed of light and exhibit wave-like properties.