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asdf1
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if photon is light considered as particles, then shouldn't it always have the speed of light? but sometimes i see that it doesn't have the speed of light in my textbook...
asdf1 said:the book is concepts of modern physics by arthur beiser... the context is talking about light and relativity
asdf1 said:if you have the 6th edition, on pg 82, you'll find an example 2.6~
for the last part of the question, my reasoning (might not be correct) is that since the two photons have different energy, then they should have different speeds?
asdf1 said:[Beiser] 6th edition, on pg 82, you'll find an example 2.6~
for the last part of the question, my reasoning (might not be correct) is that since the two photons have different energy, then they should have different speeds?
In 1927, Arthur H. Compton was awarded the Nobel Prize in Physics for his discovery of the particle properties of x-rays.
asdf1 said:lol~
if a photon's momentum can't be calulated by mv, what is the physical meaning of momentum for a photon?
That is not the physical meaning of the momentum of anything...let alone the photon. Did you mean "change something else's motion" ?asdf1 said:so you mean that the physical meaning of the momentum of a photon is still the degree to which a photon can change its motion?
Photon particles are tiny packets of energy that make up light. They are considered to be the fundamental particle of light and have no mass.
Photon particles travel at the speed of light, which is approximately 299,792,458 meters per second in a vacuum. This is the fastest speed at which anything in the universe can travel.
There is confusion about the speed of light and photon particles because the speed of light is constant and is often used as a reference for other speeds. However, the speed of light can vary depending on the medium it is traveling through, while photon particles always travel at the speed of light.
We know that photon particles travel at the speed of light because of experiments and observations that have been conducted, such as the famous Michelson-Morley experiment. Additionally, the theory of relativity also supports the idea that nothing can travel faster than the speed of light.
No, photon particles cannot be slowed down or accelerated. They always travel at the speed of light, regardless of the energy or frequency of the light they make up.