Answer:
photons
Step-by-step explanation:
Light has dual nature. It behaves like waves sometimes and sometimes like particles. Interference and diffraction pattern show that light is a wave where as photoelectric effect shows that light behaves like particles. Light is composed of particles known as photons. A photon is a packet or quanta of energy. Light exerts pressure on matter. This suggests that light is made of particles. This is known as radiation pressure.