How big is a photon?
What is the size or volume of a photon?
How big is a photon compared to an atom? Does a moving photon have mass? Does laser light have mass? Do photons, the particles of light, have mass? What is the half-life of a photon? Could a photon be a "1-dimensional object"? What does a photon look like? Does light have mass? What are photons? Physics: Why don’t photons have mass? What does it mean for a particle like a photon to have a rest-mass of zero? How can a photon exist if it is massless? Why don't photons have mass? Does light have any mass? What Is the Photon Theory of Light? What is the energy of a single UV photon having a wavelength of 11.3 nm? How can a photon have no mass when E=mc^2? What is the shortest wavelength of visible light? How is the shortest wavelength of visible light formed? How is the energy of a photon calculated? What is the Dimension of Light? In what medium does light (photon) travel? How much energy does light have? What is the definition of energy of a photon? How is it possible that a photon is massless? How can a photon not have mass but still have momentum? Is size of an atom it's diameter or radius? How do you measure the focal length of a lens? Is light made up only of photons? Where do photons appear from when mass and energy are combined?