How Does Speed of Light Remains Constant
vr = v1
+ v2/(1 + v1v2/c2)
Here vr is called relative speed, v1 and v2
are the speeds of the objects
If we substitute v1
= c, v2 = c in the above
formula
vr = c +
c/(1+c.c /c2)
vr =
2c/(1+1)
vr = 2c/2
vr
= c
implies speed of light
c is independent of the motion of the source or the observer so it is known as
universal constant
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