it is said that light takes 8 minutes to reach earth.....but according to special relativity...due to time dilation and length contradiction...it should take less lime .....is 8 minutes is from our referance frame or from the referance frame of light??????
just like when let say a star is 4 light yr from earth....does light actually takes 4 yrs or less????
just like when let say a star is 4 light yr from earth....does light actually takes 4 yrs or less????
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it is said that light takes 8 minutes to reach earth...
Light FROM *WHERE*?
but according to special relativity...due to time dilation and length contradiction...it should take less lime ...
No. Unfortunately, I can tell that you didn't learn about special relativity in school, which is unfortunate (and it's not your fault). If you had learned about relativity in school, one of the first things you'd learn is that the second postulate of Special Relativity is that light has the same speed in all inertial frames.
when let say a star is 4 light yr from earth....does light actually takes 4 yrs or less?
It takes 4 years. That's why the unit is called light-year.
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From the point of view of a photon it takes 0 seconds to reach from sun to earth. Since it travels with a velocity c time literally stops for that frame of referrence.
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Light travels at 299,792 kilometers per second; 186,287 miles per second. It takes 499.0 seconds for light to travel from the Sun to the Earth, a distance called 1 Astronomical Unit.
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the speed of light is 186000 miles per second so a light year is going that fast for an intire year