All Questions
6
questions
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42
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Radiation from a stationary charge relative to earth for a free falling observer
It is my understanding that if we have a charge at rest on earth, a free falling observer will see it radiating, as the charge is in an accelerated frame of reference. This observer can in principle ...
1
vote
4
answers
183
views
With respect to what the speed of light is measured?
We know that the propagation of light does not involve the oscillations of particles instead Electric and Magnetic fields oscillate. The variation of E and B fields results in the propagation of light,...
1
vote
2
answers
289
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Is the speed of light in a medium also remains constant when the medium travels at high speed? [duplicate]
There is a problem given as
A light signal travels from $A$ to $B$ within a glass slab which is moving (in same direction as that of light) with speed 0.3c with respect to an external observer.If the ...
3
votes
1
answer
277
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Will stationary charge radiate E.M waves if observer is accelerating?
For ex. if my frame of reference is oscillating then will i see E.M waves produced from a charge which is not oscillating with any other or ground frame of reference? Can i get a really clear answer ....
4
votes
2
answers
289
views
Is the existence of a photon relative? [duplicate]
If an observer passes an electron, in such a way that the observer is accelerating, the observer would see photons because accelerating charges induce electromagnetic waves.
But from point of view of ...
2
votes
1
answer
991
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What happens to speed and frequency of a light beam moving in transparent medium when observed from different inertial frame of reference?
Suppose a transparent medium where speed of light is $c/n$, an inertial frame of reference $K$ which is stationary relatively to the medium and an inertial frame of reference $K'$ which is moving ...