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indigojoker
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i have just a question that came to my mind. do photons have to accelerate to the speed of light every time a light bulb is turned on?
indigojoker said:i have just a question that came to my mind. do photons have to accelerate to the speed of light every time a light bulb is turned on?
No, photons do not have mass. They are considered to be massless particles because they do not have a rest mass. This allows them to travel at the speed of light without needing to accelerate.
According to the theory of relativity, photons do not accelerate to reach the speed of light. They are always traveling at the speed of light, and their energy and momentum increase as their frequency and wavelength decrease.
No, photons cannot be slowed down. They always travel at the speed of light in a vacuum. However, they can be absorbed and re-emitted, which may give the appearance of slowing down.
Yes, photons are affected by gravity. According to Einstein's theory of general relativity, gravity bends the fabric of space-time, which affects the path of photons. This is known as gravitational lensing.
Photons can travel through a vacuum at the speed of light. However, in other mediums such as air, water, or glass, photons may interact with the particles in the medium, causing them to slow down. This is why light appears to bend when passing through different mediums.