The farther you are from the lightbulb, the less visible the photons will be. This is because photons travel in straight lines and dissipate as they travel, so the farther they have to travel to reach your eyes, the less intense they will appear.
It is not possible to see individual photons with the naked eye, no matter how close you are to the lightbulb. This is because the human eye is not sensitive enough to detect such small amounts of light.
Yes, the brightness of the lightbulb can affect how far you can stand to see it. The brighter the lightbulb, the farther you will be able to see it. This is because a brighter light source emits more photons, making them easier to detect from a greater distance.
Technically, there is no limit to how far you can stand from a lightbulb and still see it. However, at a certain distance, the photons will become too faint to be detected by the human eye. This distance will vary based on the brightness of the lightbulb and the sensitivity of the observer's eyes.
Yes, there are other factors that can affect the visibility of photons from a lightbulb. These include the color of the light, the angle at which the light is being emitted, and any obstacles that may block or reflect the light. These factors can all impact the intensity and direction of the photons, making them more or less visible at different distances.