有一细棒固定在S′系中,它与Ox′轴的夹角θ′=60°,如果S′系以速度u沿Ox方向相对于S系运动,S系中观察者测得细棒与Ox轴的夹角()A、等于60°B、大于60°C、小于60°D、当S′系沿Ox正方向运动时大于60°,而当S′系沿Ox负方向运动时小于60°

有一细棒固定在S′系中,它与Ox′轴的夹角θ′=60°,如果S′系以速度u沿Ox方向相对于S系运动,S系中观察者测得细棒与Ox轴的夹角()

  • A、等于60°
  • B、大于60°
  • C、小于60°
  • D、当S′系沿Ox正方向运动时大于60°,而当S′系沿Ox负方向运动时小于60°

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