C constant to the observer as well?

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SUMMARY

Special Relativity (SR) asserts that the speed of light, denoted as c, remains constant for all observers in any inertial reference frame, regardless of their relative motion. An observer moving at a constant velocity relative to a system will measure the speed of light as c, not c+vFrame. The discussion clarifies that while the index of refraction affects the propagation of light in different mediums, it does not alter the fundamental constancy of c. Thus, all observers, irrespective of their motion, will consistently measure the speed of light as c.

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neurocomp2003
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Stupid Question:

SR says that c is constant in which ever I-FRAME its in right?
now does that include an observer looking into the system? that they would also measure c? or would they measure c+vFrame?

Also Does this have anything to do with the "index of refraction" between mediums where f is constant and lambda changes?
 
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neurocomp2003 said:
Stupid Question:

SR says that c is constant in which ever I-FRAME its in right?
Special Relativity says the speed of light, c, is constant to every observer in every inertial reference frame. An inertial reference frame is a frame that does not accelerate.

neurocomp2003 said:
now does that include an observer looking into the system? that they would also measure c?
Only if this observer is moving at a constant velocity to the frame in which your "system" is in.

neurocomp2003 said:
or would they measure c+vFrame?
No.
neurocomp2003 said:
Also Does this have anything to do with the "index of refraction" between mediums where f is constant and lambda changes?
No.
 


Yes, the constant c applies to all observers, including those looking into the system. This is a fundamental principle of special relativity, which states that the speed of light is constant for all observers, regardless of their relative motion. This means that no matter how fast an observer is moving, they will always measure the speed of light to be the same value, c.

The index of refraction in different mediums does play a role in the propagation of light, but it does not affect the constant speed of light. The index of refraction is a measure of how much a material slows down the speed of light, but the speed of light itself remains constant. So while the wavelength of light may change in different mediums, the speed of light will always be the same for all observers.
 

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