A.1/2波長的整數(shù)倍時(shí) B.1/2波長的奇數(shù)倍時(shí) C.1/4波長的奇數(shù)倍時(shí) D.1/4波長的整數(shù)倍時(shí)
A.0.1% B.0.5% C.1% D.2%
A.rp=(Z2-Z1)/Z1+Z2 B.tp=1+rp C.R=rp2 D.D=1-rp2