Which technique is NOT used to determine the size of the particles which make up the rings of Saturn?
A) studying the fraction of visible light reflected from the rings
B) studying the fraction of radio waves reflected from the rings
C) studying the colors of the rings
D) measuring the orbital periods of the particles in the rings

Question

Quizplus · Accepted Answer

Measuring the orbital periods of the particles in the rings is used to determine their distance from Saturn, not their size. The other techniques involve analyzing light and radio wave interactions, which can provide information about particle size.

Which Technique Is NOT Used to Determine the Size of the Particles