Understanding Photons

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Physics › Understanding Photons

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Why is it that photons can move at the speed of light, but other particles cannot?

Photons do not have mass

CORRECT

Photons contain more energy than other particles

0

Photons are similar in size to electrons

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Photons lack electrical charge

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Explanation

Photons can move at the speed of light because they have no mass. Anything with mass can not be accelerated to the speed of light—it takes an infinite amount of energy to do so. We can get very close, but never exactly there.

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