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Does the speed of light slow down near heavier objects? if yes, Explain
 one year ago
 one year ago
Does the speed of light slow down near heavier objects? if yes, Explain
 one year ago
 one year ago

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damrinderBest ResponseYou've already chosen the best response.0
yes dear specially when it passes close to a very huge heavy object like sun or close to a star ..
 one year ago

Nasir2012Best ResponseYou've already chosen the best response.0
The space fibers, as per the Einstein, is curved around the massive objects. so every thing passing near a massive object get curved as per the curvature around the object. and this is why an object revolves around other. it only changes its direction
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
the speed doesn't change, but space is curved around massive objects, so it has to travel a longer path and therefore takes more time (which has the net effect of seeming to 'slow' it)
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
The speed of light will change only if the Refractive Index of the medium it's travelling in, changes. Near massive objects , I think the previous explanation is good.
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
agreed, speed of light remains constant till there exists no change in medium
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
the speed of light is actually constant in any medium, it's just that due to scattering the path it must take through different materials is very different in length.
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
sorry, this concept is quite alien to me and i must say, speed changes if medium is changed
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
If the speed didn't change we would never have been able to detect neutrinos. (Cheronkov radiation)
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
we must thank @kappa007 for this piece of wisdom
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
also, then R.I. of all media would be 1.
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
oh aye? well what causes light to 'slow down' in a material? magic? or is it all that gravity from all those protons and neutrons
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
@Algebraic! if you've got concept then only entertain else don't mislead or misguide in a funny manner
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
Still, you can't compare that with gravitational lensing. If we dig down to the basics of refraction.. I think the slowing down maybe because of interaction between light's electromagnetic field and the medium's e.m. field.
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
no kidding. absorption and reemission. ie scattering
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
can you explain please.
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
read the wiki page or something.
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
The speed of light does not decrease. Anything moving at the speed of light stays at the speed of light and cannot be slowed down (unless you want to talk about "tachyons" that may or may not exist)..... When light passes through a medium the particles of light, photons, do not change speed. The wavelength of light though, does change. There is a simple relation that you can follow (wavelength in medium) = (wavelength in vacuum) / (index of refraction of medium) What is really slowing the photons down is their interaction with the particles in the medium, which shortens the wavelength. The photons themselves though still are moving at the speed of light, it is just this interaction that causes the dilation. so i don't think scattering makes any sense, it's just a blunder. or may be i am wrong
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
I'll say that, 'c' is indeed constant but not exactly the speed of light, as, the basic R.I. definition is based on such speeds only. During interaction with particles , light tends to behave as a particle. So, I think the photonparticle interaction thing must be the reason.
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
speed always remain constant, it's just interaction that acts as obstacle slowing down the speed
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
http://en.wikipedia.org/wiki/Scattering learn all about it here.
 one year ago

jasonxxBest ResponseYou've already chosen the best response.1
nice to know, people believe in wikipedia
 one year ago

kappa007Best ResponseYou've already chosen the best response.1
there's no term = 'speed' in the page suggested. I
 one year ago
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