The Fascinating World of Photons

• Classical electromagnetic theory could not explain all phenomena related to the interaction of light with matter.
• Planck introduced the theory of light quanta (photons) in 1900 to explain the radiation emitted by a heated body.
• Einstein used the theory of photons to explain the photoelectric effect.
• According to the quantum theory of Planck, light is emitted and absorbed by atoms in a discontinuous manner, with each atom emitting or absorbing a quantum of energy (photon).
• When light falls on matter, atoms absorb the radiation discontinuously, with each atom absorbing a single photon.
• Each photon of light has a specific frequency and energy.
• When light hits metals, it transfers energy from a photon to one of the metal's electrons.
• Electrons interact with photons as if they were particles.
• The theory of photons does not negate the wave nature of light.
• The energy of a photon depends on its frequency, which is a wave property of light.

Test your knowledge of the fascinating world of photons and the quantum theory of light with this quiz! From Planck's introduction of light quanta to Einstein's use of photons to explain the photoelectric effect, this quiz covers the basics of the quantum theory of light. Discover how photons interact with matter, the wave-particle duality of light, and the relationship between a photon's frequency and energy. Sharpen your understanding of this fundamental concept in physics with this engaging quiz.