What is the name of the quantum bundle of energy associated with light?

The quantum bundle of energy associated with light is called a photon. Photons are elementary particles that carry electromagnetic radiation, including visible light. They are massless particles that travel at the speed of light in a vacuum and exhibit both wave-like and particle-like properties, a phenomenon described by quantum mechanics.

This dual nature allows photons to interact with matter in various ways, such as through absorption or emission, which is central to many processes in physics and chemistry, including photosynthesis and the functioning of lasers. The concept of photons stems from the idea that light can be quantized into discrete packets of energy, each proportional to the frequency of the light, which was a significant development in understanding electromagnetic radiation.

In contrast, the other options refer to different concepts in physics. Electrons are subatomic particles with a negative charge and nuclear interactions, while neutrinos are nearly massless particles that rarely interact with matter. The term "quantum" relates to the fundamental unit of energy in certain contexts but does not specifically refer to light. Thus, the clear definition and role of photons in conveying light energy establish them as the correct answer.