• 2022-06-05
    S1和S2是两相干波源,相距1/4波长,S1比S2的相位落后[img=12x30]17e0a6abf003a24.jpg[/img]。则S1S2连线上在S1外侧各点处两波引起振动的相位差为
    未知类型:{'options': ['0', ' [img=12x30]17e0a715dab455c.jpg[/img]', ' [img=12x30]17e0a6abf003a24.jpg[/img]', ' π'], 'type': 102}
  • 举一反三