Which of the following is true about neutrinos?
A) They are a possible example of cold dark matter.
B) They are a possible example of hot dark matter.
C) They have been theoretically predicted, yet never detected.
D) They must be much more massive than the dark matter candidate called photino.
E) They account for all the dark matter in the universe.

Question

Quizplus · Accepted Answer

Neutrinos are considered a possible example of hot dark matter because they are light and move at relativistic speeds. They have been detected and do not account for all dark matter.

Which of the Following Is True About Neutrinos