for a given frequency, brightness is just a measure of the number of photons. When you increase the current in a bulb wire it gets hotter and emits more photon. When you increase the voltage, you increase the current.
SO .... more voltage => more current => more photons => brighter
Ahh right. So when current passes through and light bulb and heats it up, is the light produced when the electrons in the filament gain energy so they go up a shell then since there's an empty space, it goes back down into that space. So then it's releases that energy as a photon? So, by taking into account what you said, basically, as the temperature increases, from more current, the filament gets hotter, so more electrons are moving?
Great! Only things is, I am watching this program about Quantum Mechanics and the guy on it said that photons of different frequencies of light have different amounts of energies. He was talking about the photoelectric effect. Is this true? Because I though than every photon has the same amount of energy, but the energy only increases because its frequency increases. So more photons pass a certain point in a period of time. So there is more energy but the amount of energy in each photon is the same.
Each photon has a specific amount of energy that is determined by its wavelength or frequency. Red light has less energy than blue light because its wavelength is longer. Higher energy light isn't brighter though. Brightness is purely due to the amount of photons entering your eye.
The waves ARE the photon. The electric and magnetic field oscillate back and forth perpendicular to each other.
The depictions of all particles of little balls is incorrect. To understand the reality you would need to read up on Quantum Mechanics.