A-LevelPhysicsWaves9702/12 · Feb/Mar 2022 · Q231 Mark
Brief pulses of red, blue and green light are emitted from the Sun at the same time. The pulses travel the same distance to reach Mars. Assume that the pulses travel in a vacuum for the full duration of their journey. In which order would these pulses of light arrive at Mars?
Aall arrive at the same time
Bblue first, then green, then red
Cred first, then blue, then green
Dred first, then green, then blue
✓ Correct answer
A: all arrive at the same time
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Waves and see which topics are most likely to come up next.
Sign up free →