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Q & A: Does light have an acceleration?

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Most recent answer: 09/08/2009
do light has acceleration
- phanirajinish (age 18)
Vijayawada,Andhra pradesh,India
No, it's born with the speed of light.  It doesn't need acceleration.   Much light comes from atoms with an electron in an excited state.   When the electron drops down to a lower energy level electromagnetic radiation is emitted.  Thermal excitation, such as light from an incandescent bulb, is a different production mechanism but the speed limit still applies.


(published on 09/08/2009)

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