两相干光的光强分别为I1和2I1,当他们的光强都减半时,干涉条纹的可见度()A、减小一半B、减为1/4C、增大一倍D、不变
两相干光的光强分别为I1和2I1,当他们的光强都减半时,干涉条纹的可见度()
- A、减小一半
- B、减为1/4
- C、增大一倍
- D、不变
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单选题永续盘存法公式为()AKsubt/sub+1=Isubt/sub-(1-δ)Ksubt/subBKsubt/sub+1=It+(1-δ)Ksubt/subCKsubt/sub+1=Isubt/sub+(1+δ)Ksubt/subDKsubt/sub+1=Isubt/sub-(1+δ)Ksubt/sub
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