noun
- a particle of light or other electromagnetic radiation that has no mass and carries energy
Usage: physics
Examples
- A photon travels at the speed of light.
- Solar panels convert photons from sunlight into electricity.
- Each photon carries a specific amount of energy.
- The laser emits millions of photons per second.
- Scientists can detect individual photons using special equipment.
- X-rays are high-energy photons that can penetrate the body.