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Light! where does it end?


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#1 Inbox

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    Veteran

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Posted 01 January 2015 - 01:37 PM

 Hi,

As light waves are electromagnetic waves. What happens to once lighted bulb wave? Does wavelength changes over time or stays forever same? Thanks.



#2 bob1

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Posted 02 January 2015 - 12:48 AM

Assuming a vacuum and infinite space, in theory they stay the same. Each photon contains its own quantum of energy which won't change without interaction with some other object (interaction includes observation of the photon, according to the Heisenberg uncertainty principle).



#3 CPRES

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Posted 14 January 2015 - 07:59 AM

Interesting questions! Wish there was a physicist around to answer.


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