Question

multiple - choice question
what is a photon?
a ray of light
a ray of electron

Explanation:

A photon is a fundamental particle of light, representing the quantum of electromagnetic radiation. It is not a ray of electron as electrons are different sub - atomic particles. A ray of light is a macroscopic concept, while a photon is a discrete quantum unit of light.

Answer:

Neither of the given options is correct. A photon is a quantum of electromagnetic radiation, a discrete packet of light energy.