Why are neutrinos from a Type II supernova detected before photons?
A)Neutrinos travel faster than photons.
B)Neutrinos are easier to detect than photons.
C)Neutrinos are produced in the explosion before photons.
D)Neutrinos are emitted from the outer part of the star; photons come from the core.
E)Neutrinos escape from the star quickly because they hardly interact with matter; photons aredelayed by interactions with matter.

Question

Quizplus · Accepted Answer

Neutrinos are weakly interacting particles and can quickly escape the supernova without being significantly affected by its dense matter. On the other hand, photons interact strongly with the matter in the star, especially in its core, and cannot immediately escape. Therefore, neutrinos are detected before photons from a Type II supernova. Neutrinos hardly interact with matter, so they can escape from the star quickly, while photons are delayed by interactions with matter. Therefore, neutrinos are detected before photons during a Type II supernova.

Why Are Neutrinos from a Type II Supernova Detected Before