Answer:
Max Planck
Step-by-step explanation:
According to Max Planck light energy is quantized and is released or absorbed as an integer multiple of a small packet of energy which he called a photon. Therefore the energy stored in a photon of light is given by the equation,
E = hV
where E is the energy of the photon, v is the frequency of light and h is the Planck’s constant.
Einstein used the concept of light behaves as photons, discrete energy packets instead of waves to explain the photoelectric effect.