Assume that there is a transparent object with refractive index n, and
length L. Light can emit from one end, propagate inside of the object, and
reflect back from the other end. When the object is at rest, the time for
light to make a round trip is measured by an observer to be t.
If the object move with speed V in the direction of light propagation, what
is the time the observer measured for light to make a round trip?
解答上寫
Ux ±V
Ux'± = _______________
1 ±Ux*V/c^2 Ux = c/n
t' = ( L/Ux'+) + (L/Ux'-)
想請問為什麼是代 L 而不是 L/γ
題目的L應該指是proper length 吧?
所以應該需要轉換
還是我觀念有錯??
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 220.141.12.12