|Nov30-06, 02:48 AM||#1|
length contraction and wave length transformation
consider a rod of proper length Lo located along the overlapped OX(O'X') axes of the I and I' inertial reference frames in the standard arrangement I' moving relative to I' with speed V. The rod moves with speed U relative to I and with speed U' relative to I'. The measured length of the rod is
in I and in I' respectively. Eliminating Lo between (1) and (2) we obtain
Expressing the right side of (3) as a function of U' only, via the addition law of relativistic velocities we obtain
an equation that relates two non-proper lengths.
Is it correct to consider that the derivation presented above represents a derivtion for the relationship betwee the wavelengths of the same acoustic (mechanical) wave that propagates with speeds U and U' relative to I and I' respectively?
Did you find that derivation somewhere in the literature of the subject?
sine ira et studio
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