H3

H 3.1


Light Clock:




Describe the observations either Jack and Jill or observer A and B:


Observer A and B both have light clocks that time 1 nanosecond for every time light reflects through a cycle.
But observer B is inside a glass carriage travelling at velocity v relative to observer A. Because the carriage is moving relative to observer A, the distance travelled is greater, but the speed of light is still c (the same in all inertial frames).
Therefore the time between the light leaving the lower surface and returning must now be greater than a nanosecond.


Define Light clock:


A light clock is a clock in which a pulse of light is sent and reflected off glass and returns to the point the pulse was given from.


Lorenz Factor Graph: