• 2022-07-01
    波长为l0、频率为n0的声波折射进入到另一种媒质中,声波在该媒质中的速度是原来的2倍,则声波在该媒质中的波长l和频率n分别为
    A: l=l0,n=n0.
    B: l=l0/2,n=n0.
    C: l=2l0,n=n0.
    D: l=l0,n=2n0.
  • C

    内容

    • 0

      多电子原子中,能量最高的轨道是 A: n = 1,l = 0 B: n = 2,l = 0 C: n = 4,l = 0 D: n = 3,l = 2

    • 1

      下列量子数合理的是 。 A: n = 2,l = 0,m = 1 B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0

    • 2

      下列量子数合理的是 A: n = 2,l = 0,m = 1 ‍ B: n = l,l = 1,m = 1 C: n = 2,l = 2,m = 2 D: n = 1,l = 0,m = 0

    • 3

      下列各组量子数中正确的是? n = 2,l = 0,m = -1|n = 2,l = 2,m = 0|n = 3,l = 1,m = -1|;n = 2,l = 3,m = 0

    • 4

      下列各组量子数中正确的是 A: n = 3,l = 1,m = -1 B: n = 2,l = 2,m = 0 C: n = 2,l = 0,m = -1 D: n = 2,l = 3,m = 0 E: n = 1,l = 2,m = 1 F: n = 4,l = 0,m =1