sppose, what will happen when we slow down the speed of light from 3 * 10^8m/s to............ < 3*10^8m/s ?give answer in detail
Answers
Explanation:
-reasons for the known speed of light.
1 The speed in vacuum was directly calculated by Maxwell from his equations of electrodynamics. It is c =
the inverse of the square root of the product of the magnetic permeability and the electric permittivity of empty space.
2 The 1983 SI standards conference chose to take advantage of the high precision of atomic clocks to improve precision in length measurement: they defined the meter, the base unit for distance, in terms of the base unit for time: it is now the distance travelled by light in the fraction
1 part in 299,792,458 second.
This defines the speed of light to be (precisely) 299,792,458 m/s.
Of course, there are conditions of measurement. The speed is known to vary by medium, and in most media by wavelength. It varies with the surrounding gravity. It varies with cosmic distance (Hubble expansion).
It is precisely 299,792,458 m/s, except where it is not.
The second what-would-happen-if question is just silly. Speed is relative. It has no intrinsic “effect,” because it is not even defined until you pin down who is looking. Speeding down a road is dangerous: you may hit something. (Just as standing in the road is dangerous.)
But speed is nothing in and of itself, as Galileo noted a few hundred years ago. Wrote a book with the discovery (something about the “Two World Systems). Best seller. It almost got him killed.