Question

6 - 3 = 6
Kaise, how? ​

Answer 1

Answer:

6–3=6 is quite famous in Einstein’s world as I know it.

Einstein discovered that, when the observer is moving with speed v away from a light source emitting a series of pulses (the distance between subsequent pulses is D), the frequency he measures is:

f' = c/D - v/D = (c-v)/D

and the speed of the pulses relative to the moving observer is:

c' = D(f') = c - v = c

A light source emits six pulses each second - the distance between the pulses is, accordingly, D = 50000 km. For a stationary (with respect to the source) observer the frequency and the speed of the pulses are:

f = 6 ; c = 6D

Then the observer starts moving at (1/2)c = 3D away from the source. According to special relativity, the frequency and the speed of the pulses relative to the moving observer change as follows:

f' = 6 - 3 = 3 ; c' = 6D - 3D = (6 - 3)D = 6D

its just very simple if you understand it properly